RSS 2.0 Feed

» Welcome Guest Log In :: Register

Pages: (12) < ... 3 4 5 6 7 [8] 9 10 11 12 >   
  Topic: Thread for Cryptoguru, Evolution, Evolutionary Computing, etc< Next Oldest | Next Newest >  
JohnW



Posts: 3217
Joined: Aug. 2006

(Permalink) Posted: Feb. 18 2015,12:12   

Quote (NoName @ Feb. 18 2015,09:22)
Quote (cryptoguru @ Feb. 18 2015,11:53)
     
Quote
I'd be very interested to hear his definition of 'information'.
Clearly, pretty much unarguably, natural processes can produce vast amounts of information.
Stellar spectra are information.  They are produced by natural phenomena.
Tides are information.  They are produced by natural phenomena.
Fingerprints are information.  They are produced by natural phenomena.


Natural laws can produce ordered output, e.g. fractals, orbits, crystals etc.
This is not information ... information is "What is conveyed or represented by a particular arrangement or sequence of things" i.e. has meaning
http://www.oxforddictionaries.com/definit....rmation

Waves can produce patterns on the beach, this is not information ... it is a pattern enforced by a natural system.

And you're saying that these patterns are meaningless???
That's absurd.  The patterns enforced by the natural system of physics and chemistry provides meaningful information about the stellar composition and processes of stars.  This isn't 'just some random pattern', it is incredibly meaningful, and the meaning is tightly coupled to very specific and very precise natural laws.

     
Quote
DNA holds information about how to build an organism ... it is an instruction set that is meaningful to the processing logic of a biological cell. This is not like a fractal or a wave, this is a deterministic sequence of instructions that is understood by the cell and is used to perform specific tasks.
The data sent to a radio controlled car is information, which has intended purpose in the control of the car ... the wind blowing the car off course is not information, even if it makes a pattern, the car is not deriving meaning from the interaction.

this is stuff a 3 year old would understand ... if you put a sandwich in a DVD player it won't play a movie. In fact, you can't put a CD in a DVD player and expect to watch a movie ... the information isn't there.

The information contained in a sandwich is not the same as the information contained in a DVD or a CD.  But that it is useless for one purpose does not mean it is meaningless, or that it is without purpose.
You're cheating, badly and transparently, by applying entirely artificial constraints on to what meaning you find, and  where, solely due to your preselected purposes.
That's not how it's done.

     
Quote
Information can't be created randomly. That's utter nonsense.

Blatant assertion, without support.  Information is precisely distinct from randomness, viz. Shannon.
Constrained randomness produces information literally all the time.
[your argument with Wesley snipped]
New information does not appear by magic.  
Yet your claim amounts to the assertion that it does.
We have two alternatives -- natural law and magic.
If you reject the one, and look, you did so right at the top of your post, then you're stuck with magic.
It is YOUR position that information appears by magic.
It is OUR position that information appears naturally, by the operations of nature, which, btw, include randomness.

Looks like "information" is being defined in the same way as CSI, FIASCO and all the other ID sciency terms: "The property of things which look designed to me which makes them look designed to me."

--------------
Math is just a language of reality. Its a waste of time to know it. - Robert Byers

There isn't any probability that the letter d is in the word "mathematics"...  The correct answer would be "not even 0" - JoeG

  
NoName



Posts: 2729
Joined: Mar. 2013

(Permalink) Posted: Feb. 18 2015,12:16   

Quote (JohnW @ Feb. 18 2015,13:12)
Quote (NoName @ Feb. 18 2015,09:22)
Quote (cryptoguru @ Feb. 18 2015,11:53)
       
Quote
I'd be very interested to hear his definition of 'information'.
Clearly, pretty much unarguably, natural processes can produce vast amounts of information.
Stellar spectra are information.  They are produced by natural phenomena.
Tides are information.  They are produced by natural phenomena.
Fingerprints are information.  They are produced by natural phenomena.


Natural laws can produce ordered output, e.g. fractals, orbits, crystals etc.
This is not information ... information is "What is conveyed or represented by a particular arrangement or sequence of things" i.e. has meaning
http://www.oxforddictionaries.com/definit....rmation

Waves can produce patterns on the beach, this is not information ... it is a pattern enforced by a natural system.

And you're saying that these patterns are meaningless???
That's absurd.  The patterns enforced by the natural system of physics and chemistry provides meaningful information about the stellar composition and processes of stars.  This isn't 'just some random pattern', it is incredibly meaningful, and the meaning is tightly coupled to very specific and very precise natural laws.

       
Quote
DNA holds information about how to build an organism ... it is an instruction set that is meaningful to the processing logic of a biological cell. This is not like a fractal or a wave, this is a deterministic sequence of instructions that is understood by the cell and is used to perform specific tasks.
The data sent to a radio controlled car is information, which has intended purpose in the control of the car ... the wind blowing the car off course is not information, even if it makes a pattern, the car is not deriving meaning from the interaction.

this is stuff a 3 year old would understand ... if you put a sandwich in a DVD player it won't play a movie. In fact, you can't put a CD in a DVD player and expect to watch a movie ... the information isn't there.

The information contained in a sandwich is not the same as the information contained in a DVD or a CD.  But that it is useless for one purpose does not mean it is meaningless, or that it is without purpose.
You're cheating, badly and transparently, by applying entirely artificial constraints on to what meaning you find, and  where, solely due to your preselected purposes.
That's not how it's done.

       
Quote
Information can't be created randomly. That's utter nonsense.

Blatant assertion, without support.  Information is precisely distinct from randomness, viz. Shannon.
Constrained randomness produces information literally all the time.
[your argument with Wesley snipped]
New information does not appear by magic.  
Yet your claim amounts to the assertion that it does.
We have two alternatives -- natural law and magic.
If you reject the one, and look, you did so right at the top of your post, then you're stuck with magic.
It is YOUR position that information appears by magic.
It is OUR position that information appears naturally, by the operations of nature, which, btw, include randomness.

Looks like "information" is being defined in the same way as CSI, FIASCO and all the other ID sciency terms: "The property of things which look designed to me which makes them look designed to me."

Which, amusingly enough, is both meaningless and unspecifiable.

And, of course, renders all science impossible, renders 'information' something that can only be produced by magic, and ultimately renders all output by the claimants inherently information-less.

  
stevestory



Posts: 13407
Joined: Oct. 2005

(Permalink) Posted: Feb. 18 2015,13:46   

Crypto, do you have an objection to evolution which hasn't already been answered?

   
cryptoguru



Posts: 53
Joined: Jan. 2015

(Permalink) Posted: Feb. 18 2015,14:35   

Quote
Crypto, do you have an objection to evolution which hasn't already been answered?


I didn't get any answers to my questions, just assertions that I'm wrong.

Quite entertaining though ... so I suppose, yeah if you're allowed to redefine what information is to prove that information can magically emerge from randomness, and say that observing any change means that you've proved evolution, and that if we assume Common Descent is the reason for diversity that we can explain the similarities between different organisms as them having a common ancestor.

Yeah I suppose you've all answered all the questions to the satisfaction of someone who would be satisfied with an answer that they themselves gave.

I showed quite clearly how Avida is biasing the results and "proving" that information emerges by rewarding organisms using known targets. But someone said it isn't ... so yeah I reckon they probably proved it beyond all reasonable doubt ... and that's me looking like a TOTAL idiot now.

(now cue everyone quoting my last sentence as though it wasn't sarcastic)

  
NoName



Posts: 2729
Joined: Mar. 2013

(Permalink) Posted: Feb. 18 2015,14:52   

Quote (cryptoguru @ Feb. 18 2015,15:35)
 
Quote
Crypto, do you have an objection to evolution which hasn't already been answered?


I didn't get any answers to my questions, just assertions that I'm wrong.


That, sir, is a flat-out lie.
And even if it were true, you'd be a fine one to talk.  You're not exactly forthcoming with honest straightforward answers to questions yourself.

 
Quote
Quite entertaining though ... so I suppose, yeah if you're allowed to redefine what information is to prove that information can magically emerge from randomness,

You'll note that that is not what I, nor others here, have done.
You'll also note that we have noted that you have not addressed the examples of information emerging from the operation of natural law.
Finally, stop using the word 'randomness' until you provide a precise operational definition.  It's not a magic wand that  can get you out of trouble.

 
Quote
and say that observing any change means that you've proved evolution, and that if we assume Common Descent is the reason for diversity that we can explain the similarities between different organisms as them having a common ancestor.

Again with the confusion over assumptions and well-supported conclusions.
I thought lying made baby jesus cry?

Quote
Yeah I suppose you've all answered all the questions to the satisfaction of someone who would be satisfied with an answer that they themselves gave.

I showed quite clearly how Avida is biasing the results and "proving" that information emerges by rewarding organisms using known targets. But someone said it isn't ... so yeah I reckon they probably proved it beyond all reasonable doubt ... and that's me looking like a TOTAL idiot now.

(now cue everyone quoting my last sentence as though it wasn't sarcastic)

You've done no such thing.

Most notable is how you continue to shift goal-posts, fail to address substantive points  that  call your entire schtick into question, and lie continuously about what others say and have said.  That last is particularly odd given that the words are all right here.

Stellar spectra are information.  They emerge from natural processes.  Deal with it.
Provide any case of information arising from non-natural processes.  Just be very careful to demonstrate that the alleged 'non-natural causes' are in fact non-natural and yet causal.
Kindly explain how your dismissal of information arising from natural law being impossible is anything other than a bow towards magic, and a flight from science.  How else does science function except through examination of the information provided by natural processes?
If you don't know the answers to these questions, if you don't understand the dilemma your own expression of your own position have placed you in, you ought not to be making the "arguments" you make.

  
Cubist



Posts: 558
Joined: Oct. 2007

(Permalink) Posted: Feb. 18 2015,19:06   

Quote (cryptoguru @ Feb. 18 2015,05:58)
   
Quote
One: Does Sequence X1 qualify as "new and novel genetic material"? It's a yes-or-no question, cryptoguru; either yes, Sequence X1 does, in fact, qualify as "new and novel genetic material", or no, Sequence X1 does not, in fact, qualify as "new or novel genetic material". It's all well and good to go on about "probability" and "scale" and yada yada, but I really would like to see a yes or a no, and thus far, I ain't seen a yes or a no.

Two: Does Sequence X1 contain any "new and novel genetic material"? Again, it's a yes-or-no question, to which either yes, it does or no, it doesn't would both be relevant responses. Going on about "scale" and "probability" and yada yada, contrariwise, is not a particularly relevant response, as best I can tell.

This is the fallacy of many questions (e.g. Do you still beat your wife?)...

Bullshit it’s “the fallacy of many questions”. It is, rather, an attempt to get you to apply your definition of “new and novel genetic material” to a specific nucleotide sequence, and indicate whether that specific nucleotide sequence either is (entirely) "new and novel genetic material", or else contains (some amount of) "new and novel genetic material".

Transparent rationalization/excuse for not even attempting to answer the question is noted.

Way back on page 1 of this thread, I asked, "What does 'new information' look like? Given an arbitrary string of nucleotides, and a mutation which alters that string of nucleotides, how can you tell whether or not the post-mutation version of that string contains any "new" information?"

Your reply to this question, which appeared on page 2 of this thread, is "New information is new and novel genetic material that codes for new function or traits in the organism i.e. not a point mutation in a control gene that switches other pre-existing functionality off/on or a trade/inheriting of genetic material between bacteria ...NEW genetic material that codes for new function; this has never been observed." So according to cryptoguru, the specific case of "a point mutation in a control gene that switches other pre-existing functionality off/on or a trade/inheriting of genetic material between bacteria" does not either "new information", or "new and novel genetic material". Fine—but this definition does nothing to help us determine whether a point mutation in a control gene that does something other than switch pre-existing functionality on/off constitutes "new information" or "new and novel genetic material". This definition also does nothing to help us determine whether any mutation other than a point mutation in a control gene constitutes "new information" or "new and novel genetic material". This definition also does nothing to help us determine whether any mutation that affects DNA other than the DNA in a control gene constitutes "new information" or "new and novel genetic material".

There is, of course, nothing wrong with a statement whose applicability is highly restricted. But if one does make a statement whose applicability is highly restricted, one ought not go on to declare that said statement has any effect on anything outside the highly restricted domain of said statement's applicability.

 
Quote
[the fallacy of many questions] is the rhetorical trick of asking a question that cannot be answered without admitting a presupposition that may be false.

The only "presupposition" I am aware of in the question does Sequence X1 qualify as “new and novel genetic material? is the "presupposition" that there actually is a meaningful, usable definition of “new and novel” in the phrase "new and novel genetic material". This presupposition may well be false, and the more bafflegab you disgorge instead of, you know, answering the question, the more likely it becomes that this presupposition is, in fact, false.

   
Quote
I defined what I meant by "new and novel" ...

Bullshit you did. Feel free to provide a link to the post in which you defined this term… or, more likely, provide another unfounded I did define my terms I did I did I did so define my terms! assertion.

 
Quote
I am qualifying new material as that which is quantifiably non-trivial.

Okay… so in addition to "new and novel", and "unique", the "new material" you speak of has to be "quantifiably non-trivial". Please explain, as you have conspicuously neglected to do thus far, how to distinguish "genetic material" which is "new", from "genetic material" which is "novel", and from "genetic material" which is "unique". Oh, and now that you've thrown "quantifiably non-trivial" into the pot, please explain how to distinguish "genetic material" which is "new", from "genetic material" which is "quantifiably non-trivial". Or, if you cannot explain how to distinguish "genetic material" which is "new" from "genetic material" which is "novel" and/or "unique" and/or "quantifiably non-trivial", please explain how your use of "new" as a separate term is supposed to help anyone understand what the heck is going on.

Please explain how to distinguish "genetic material" which is "novel", from "genetic material" which is "unique", and from "genetic material" which is "quantifiably non-trivial". Or, if you cannot explain how to distinguish "genetic material" which is "novel" from "genetic material" which is "unique" and/or "quantifiably non-trivial", please explain how your use of "novel" as a separate term is supposed to help anyone understand what the heck is going on.

Please explain how to distinguish "genetic material" which is "unique", from "genetic material" which is "quantifiably non-trivial". Or, if you cannot explain how to distinguish "genetic material" which is "unique" from "genetic material" which is "quantifiably non-trivial", please explain how your use of "unique" as a separate term is supposed to help anyone understand what the heck is going on.

 
Quote
A small change can occur by chance, so can a few small changes. A lot of change in a short period of time that is quantifiably useful for new purpose and not pre-existant is what we observe in ORFan genes. Scale is important

That's nice, cryptoguru. It doesn't appear to have anything to do with determining whether or not a given nucleotide sequence does or doesn't constitute/contain "genetic material" which is "new" and/or "novel" and/or "unique" and/or "quantifiably non-trivial", but it's nice. I'll just cut-and-paste the original iteration of my is this 'new' 'genetic information'? question from the post in which it appeared…

Here's an arbitrary nucleotide sequence, with a randomly-picked nucleotide—the thymine in the 4th codon—colored red:
gcc tac agg gat cgt ggg gac ctt acg aat ggc ctt ttt gac tat tct tcg aat cta agc tca gca tca ttc ccg tct acg gga agt ccc ttc cca ata cat atc ctc ggc acc gca ctt gca ggc tca cgc ttc gcg tca ttt agg tca
That sequence of codons yields the following sequence of amino acids, with the 4th amino acid colored red on account of it's the AA that's yielded by the codon with the red-colored nucleotide:
alanine, tyrosine, arginine, aspartic acid, arginine, glycine, aspartic acid, leucine, threonine, asparagine, glycine, leucine, phenylalanine, aspartic acid, tyrosine, serine, serine, asparagine, leucine, serine, serine, alanine, serine, phenylalanine, proline, serine, threonine, glycine, serine, proline, phenylalanine, proline, isoleucine, histidine, isoleucine, leucine, glycine, threonine, alanine, leucine, alanine, glycine, serine, arginine, phenylalanine, alanine, serine, phenylalanine, arginine, serine

One possible mutation of that sequence would be if the thymine in the 4th codon was deleted, like so (and the thereby-altered 4th codon is colored red here):
gcc tac agg gac gtg ggg acc tta cga atg gcc ttt ttg act att ctt cga atc taa gct cag cat cat tcc cgt cta cgg gaa gtc cct tcc caa tac ata tcc tcg gca ccg cac ttg cag gct cac gct tcg cgt cat tta ggt ca
Since a codon is three nucleotides in a row, deleting that one nucleotide from the 4th codon in the original sequence doesn't just change that 4th codon; it also has the effect of changing pretty much every codon after that altered 4th codon. This, in turn, yields a very different sequence of amino acids than the original, unmutated sequence. The red-colored AAs are ones which don't occur at all in the original, unmutated sequence:
alanine, tyrosine, arginine, aspartic acid, valine, glycine, threonine, leucine, arginine, methionine, alanine, phenylalanine, leucine, threonine, isoleucine, leucine, arginine, isoleucine, [end], alanine, glutamine, histidine, histidine, serine, arginine, leucine, arginine, glutamic acid, valine, proline, serine, glutamine, tyrosine, isoleucine, serine, serine, alanine, proline, histidine, leucine, glutamine, alanine, histidine, alanine, serine, arginine, histidine, leucine, glycine, [???]

Does the mutated nucleotide sequence qualify as "new and novel genetic material"? Does the mutated nucleotide sequence contain any "new and novel genetic material"?

 
Quote
So when you use a single symbol mutation to try and demonstrate how an entire program could arise, you have missed the mark by a catastrophic proportion.

That may be so, cryptoguru. However, I, at least, have not "use[d] a single symbol mutation to try and demonstrate how an entire program could arise"; rather, I have been asking questions with the intent of getting you to explain what the heck you mean.

 
Quote
Let me expose your argument with a similar analogy…

BZZT! Wrong. I'm not making an argument at all, cryptoguru. I am, instead, asking you to explain what the heck you mean. It's unclear whether you intend to do so any time in the foreseeable future, but that's okay; for my purposes, a Creationist who replies to cogent questions with diversionary bafflegab is as good as a Creationist who actually answers cogent questions.

  
N.Wells



Posts: 1836
Joined: Oct. 2005

(Permalink) Posted: Feb. 18 2015,20:24   

A cool new paper on one major way in that the early birds (stemward of Confuciusornis) were significantly more primitive than later Cretaceous and Cenozoic birds:
http://rspb.royalsocietypublishing.org/content....0142864

  
Wesley R. Elsberry



Posts: 4991
Joined: May 2002

(Permalink) Posted: Feb. 19 2015,09:18   

Cryptoguru:

 
Quote

Avida selects by using complete logic gates plus IO as symbols,


Me:

     
Quote

Wrong. Avidian instructions in the 2003 paper do not correspond to digital circuit logic gates. The functions being awarded merit in the 2003 paper correspond to typical logic functions (AND, OR, NOT, etc.). Cryptoguru is making this into a persistently repeated error.


Cryptoguru:

     
Quote

You obviously don't know what a logic gate is ... AND, OR & NOT are all logic gates. I did not mean in a digital circuit, we are both talking about the same thing ... wow talk about completely misrepresenting what I'm saying.


"Logic gate" is a technical term whose source context is digital circuit design. See Google 'define "logic gate"'. AND, OR, and NOT are examples of logical functions which can be realized in electronic circuitry, and such idealized or realized circuits are called "logic gates". If Cryptoguru "did not mean in a digital circuit", he shouldn't have used jargon from digital circuit design.

Going back to the original statement, Cryptoguru says that Avida "symbols" are "complete logic gates" and "IO". "Symbol" there is only interpretable as "instruction", the units that comprise Avidian genomes/programs. I will need to walk back my statement above by 1/9th: there is an Avidian instruction called "nand" and there is a rewarded function called NAND. None of the other eight rewarded functions has an instruction named the same thing, nor that even arguably are conceptually similar. And it must be noted that the instruction "nand" does not itself accrue any merit by its presence in an Avidian program. In order to get the reward for the NAND function, there has to be an executed program sequence in the Avidian genome that implements the NAND function, and the shortest known hand-written NAND function program is five Avida instructions long, thus: io io nop-c nand io. This is the crucial distinction Cryptoguru is having trouble with: the instructions that make up the Avida genomes/programs are not what gets awarded merit. This distinction makes a difference. Avidians are rewarded for what they *do*, not what their programs *are*. When I say "rewarded function", I am referring to the behavior that gets rewarded, and when I say "instruction", I am referring to an element of the Avidian program sequence. So, no, Cryptoguru and I are not talking about the same thing, because there is the analogous distinction between the Avidian program instruction sequence and the Avidian behavior that results from its execution as exists between a biological organism's genotype and its phenotype. Cryptoguru is confused on this point, since "Avida selects ... symbols" clearly shows that Cryptoguru is referring to an Avida genotype as the thing being selected, and, as I have stated over and over, that is false. Cryptoguru has a problem with me saying that he is wrong, and there is certainly a way for Cryptoguru to establish his claim: produce the Avida source code showing any reward of merit for Avida genomic contents. It's his claim, will he abandon it?

--------------
"You can't teach an old dogma new tricks." - Dorothy Parker

    
OgreMkV



Posts: 3668
Joined: Oct. 2009

(Permalink) Posted: Feb. 19 2015,09:29   

It's HIGHLY amusing to watch crytpoguru argue about Avida to someone who worked on Avida.

Thank you Wes!

--------------
Ignored by those who can't provide evidence for their claims.

http://skepticink.com/smilodo....retreat

   
NoName



Posts: 2729
Joined: Mar. 2013

(Permalink) Posted: Feb. 19 2015,09:53   

Indeed.

It's also amusing to see how desperate he is to argue about AVIDA rather than Lenski's work.  Apparently, if it "can't" be modeled, it can't be real, it can't exist.
How convenient for him, and others.  It lets them ignore messy reality in favor of neat, small-minded, limited conceptualizations which are inevitably, as we have seen, prejudicially selected, set up, described, and used.

  
midwifetoad



Posts: 4003
Joined: Mar. 2008

(Permalink) Posted: Feb. 19 2015,09:57   

Question for Wes:

Have you read Wagner's book, in which he discusses systems of AND, OR and NOT operators and asserts that when you reach a certain "genome" length, you can almost always find a mutation that does not change the output?

Furthermore, having mutated an element, you can almost certainly find another element that can be mutated without affecting the output. And that you can stepwise change 80 percent or more of the elements without affecting output.

He calls this inovability. I think an equivalent term would be evolvability. His assertion is that it is a characteristic of any complex system, and that the level of complexity doesn't have to be high. His digital genomes have 16 elements.

What he is arguing against is the ID claim that functional sequences are isolated and cannot be bridged by point mutations. Or Dembski's claim that some special or designed search process is required.

--------------
Any version of ID consistent with all the evidence is indistinguishable from evolution.

  
cryptoguru



Posts: 53
Joined: Jan. 2015

(Permalink) Posted: Feb. 19 2015,11:14   

Quote
Cryptoguru is having trouble with: the instructions that make up the Avida genomes/programs are not what gets awarded merit. This distinction makes a difference. Avidians are rewarded for what they *do*, not what their programs *are*. When I say "rewarded function", I am referring to the behavior that gets rewarded, and when I say "instruction", I am referring to an element of the Avidian program sequence. So, no, Cryptoguru and I are not talking about the same thing, because there is the analogous distinction between the Avidian program instruction sequence and the Avidian behavior that results from its execution as exists between a biological organism's genotype and its phenotype


Nope that is what I thought was happening ... my point isn't that they're being rewarded on the symbol level, rather that the "function" they're being rewarded for is a known target that the algorithm is testing against, and it is only one level of complexity above the symbols. this is synonymous with mutating at the codon level, but assuming that the codon has a linear affect on output (which it doesn't, because you could have mutated a regulatory gene or mutated a codon in a multiple reading frame which would affect multiple outputs) then Avida is rewarding at the protein level (the level up from the codons) ... not on an organism level. Tell me, how is this analogous to what is purported to happen in nature? How is this modelling Natural Selection?
YES I know the selection in Avida is occurring on the population level because of competition, but the competition is fixed, the organisms are being rewarded according to sub-organism level functionality and they are being rewarded proportional to them matching a known target i.e. a logical function.
(I'm trying to use your terminology to avoid ambiguity)

So you can try to use equivocation to pretend I'm saying something other than I am if you like ... but I think it's pretty clear what I'm saying now. Address the issue at hand, not the straw man you keep claiming I'm making.

let's say it again
Avida mutates symbols and rewards linear combinations of them according to known targets (logical functions). Biology combines symbols in a non-linear fashion (multiple reading frames and control sequences) and the organism is rewarded based on its suitability in the environment compared to its competitors, not at the level up from symbols (which would be proteins in biology). These are 2 vast simplifications to the algorithm of biological evolution and Avida therefore models a much more trivial problem than evolution proposes ... in essence it's not much different to the Weasel algorithm that uses a known target to fix the odds of the stochastic search.

I can show you another system which appears to create ordered functional complexity out of randomness, it's called fractal image compression (Barnsley et al). A map is applied to a 2D image which creates contractive transforms across the problem space so that only transforms and relationships are saved. Random noise is now placed into the 2D image and the relationships are iterated, the image magically appears. Did information come from nowhere? NO! It looked like it did, but the information was stored efficiently in the algorithm, not in the image data. (where we would expect). Avida is imposing intelligence on the system by rewarding at a level that effects the competition, the intelligence is put in by the algorithm that determines whether or not the organism has achieved a logical function, THAT is not a natural process.

So in summary ... Avida cheats in 2 ways, it has reduced the non-linear genome to linear. It artificially rewards by imposing a known target at the level directly above symbols, that requires intelligence and is not a natural process.

  
Wesley R. Elsberry



Posts: 4991
Joined: May 2002

(Permalink) Posted: Feb. 19 2015,11:38   

Quote (midwifetoad @ Feb. 19 2015,09:57)
Question for Wes:

Have you read Wagner's book, in which he discusses systems of AND, OR and NOT operators and asserts that when you reach a certain "genome" length, you can almost always find a mutation that does not change the output?

Furthermore, having mutated an element, you can almost certainly find another element that can be mutated without affecting the output. And that you can stepwise change 80 percent or more of the elements without affecting output.

He calls this inovability. I think an equivalent term would be evolvability. His assertion is that it is a characteristic of any complex system, and that the level of complexity doesn't have to be high. His digital genomes have 16 elements.

What he is arguing against is the ID claim that functional sequences are isolated and cannot be bridged by point mutations. Or Dembski's claim that some special or designed search process is required.

I haven't read Wagner's book, so I can't speak to that.

However, the phenomenon described might not be as weighty as it looks from the short description here. It's pretty easy to get "don't care" conditions in digital circuits, and anything upstream of a "don't care" input could be changed without effect. In biology, you'd be looking at the distinction between epistasis and evolvability. The extent to which you report Wagner is able to change things in stepwise fashion does make it sound like it probably isn't all some sort of digital circuit "epistasis", though.

--------------
"You can't teach an old dogma new tricks." - Dorothy Parker

    
Wesley R. Elsberry



Posts: 4991
Joined: May 2002

(Permalink) Posted: Feb. 19 2015,11:45   

Cryptoguru:

Quote

Nope that is what I thought was happening ...


Too bad, then, that what you said was happening was the opposite.

--------------
"You can't teach an old dogma new tricks." - Dorothy Parker

    
Wesley R. Elsberry



Posts: 4991
Joined: May 2002

(Permalink) Posted: Feb. 19 2015,12:13   

The "linear" vs. "non-linear" issue... It's been raised before, and stomped flat before, though Cryptoguru seems to have missed it, like most indications that he is talking nonsense.

Quote


[Cryptoguru:]
Quote

2) It is not just multiple reading frames that introduce polymorphism into the genome, but regulatory genes can effect the expression of an entire coding gene. This non-linearity is not modelled in AVIDA, which is a linear sequential code (like assembler). That is, the Genome executes a higher-level language than a sequential instruction set.


Again, this concern is nowhere to be seen in the original challenge, and is thus irrelevant to the original challenge. Plus, the Avida documentation notes:

               
Quote


One major concept that differentiates this virtual assembly language from its real-world counterparts is in the additional uses of nop instructions (no-operation commands). These have no direct effect on the virtual CPU when executed, but often modify the effect of any instruction that precedes them. In a sense, you can think of them as purely regulatory genes. The default instruction set has three such nop instructions: nop-A, nop-B, and nop-C.


But like I said, that's all irrelevant to the original challenge.


The regulatory effects are non-linear, which qualitatively puts paid to Cryptoguru's ignorant prattle. But wait, there's more... Avida genomes are programs in a Turing-complete instruction set, including the full panoply of branching instructions needed to make that happen. The Avida instruction set includes mov-head, jmp-head, and set-flow. Turing-completeness implies that if the Avida instruction set is inadequate to model what Cryptoguru wants modeled, then no other computer language is capable of the job, either.

Cryptoguru has a choice of dropping his particular objection to Avida, or his claim that biology equals computation. There is no third option.

--------------
"You can't teach an old dogma new tricks." - Dorothy Parker

    
NoName



Posts: 2729
Joined: Mar. 2013

(Permalink) Posted: Feb. 19 2015,12:25   

He's already gone for 'biology equals magic'*, so I'm not sure that 'computation equals magic' is beyond his reach.

*Not directly and in so many words, of course, he would never be so boorish as to be that transparent.
But it's hard to see how else to take his assertions that
Quote
Natural laws can produce ordered output
This is not information
DNA holds information about how to build an organism

other than as 'information cannot come from natural law, therefore biology has nothing to do with natural law therefore magic'.

  
midwifetoad



Posts: 4003
Joined: Mar. 2008

(Permalink) Posted: Feb. 19 2015,13:01   

I'm not sure Wagner presents any new science, but he does present a compelling metaphor.

Stasis is the beginning rather than the end of his argument. He has a long section on equivalent metabolisms, arguing that there are are an indefinitely large number of equivalent metabolisms, and that microbes -- for example -- can walk from one set of metabolisms to another without having to bridge any large gaps. So even mutations that change enzymes can result in a functionally equivalent or viable organism. And once such a change occurs, it opens up a new dimension or direction of non-lethal change.

It's all about the permissiveness of biochemistry, the ability of change to occur without being fatal. More specifically, change accomplished via small steps.

I think it's worth discussing, because it really crushes the arguments of Behe and Dembski. Assuming Wagner is correct.

--------------
Any version of ID consistent with all the evidence is indistinguishable from evolution.

  
OgreMkV



Posts: 3668
Joined: Oct. 2009

(Permalink) Posted: Feb. 19 2015,13:09   

Quote (midwifetoad @ Feb. 19 2015,13:01)
I'm not sure Wagner presents any new science, but he does present a compelling metaphor.

Stasis is the beginning rather than the end of his argument. He has a long section on equivalent metabolisms, arguing that there are are an indefinitely large number of equivalent metabolisms, and that microbes -- for example -- can walk from one set of metabolisms to another without having to bridge any large gaps. So even mutations that change enzymes can result in a functionally equivalent or viable organism. And once such a change occurs, it opens up a new dimension or direction of non-lethal change.

It's all about the permissiveness of biochemistry, the ability of change to occur without being fatal. More specifically, change accomplished via small steps.

I think it's worth discussing, because it really crushes the arguments of Behe and Dembski. Assuming Wagner is correct.

Seems like Lenski's work would support those ideas.

IIRC, the citrate metabolizing bacteria appeared at 40k generations (or thereabouts), but the mutations to support those bacteria appeared at about 23k generations.

So, there were certainly mutations that had no direct effect (or an almost unmeasurable one) on the bacteria, but the final mutation happened and an entirely new food source became available (in oxygen).

--------------
Ignored by those who can't provide evidence for their claims.

http://skepticink.com/smilodo....retreat

   
midwifetoad



Posts: 4003
Joined: Mar. 2008

(Permalink) Posted: Feb. 19 2015,13:53   

Well, Wagner has some interesting things to say about the minimum viable set of metabolic products, and what is necessary to live on limited food supplies, and his analysis may or may not be original.

But he does credit others for doing the actual research supporting his "Library of Babel" metaphor.

His primary claim is that the number of viable genomic configurations is hyper-astronomical, and that viable configurations are connectable by mutation sized steps.

That answers Behe's Edge claim, and it answers Dembski's Search for a Search Claim.

For dessert, he brings up the Avida-sounding digital logic experiment, which he claims supports the idea that connectedness and evolvability are expected attributes of any complex system. In other words, not fine tuned.

--------------
Any version of ID consistent with all the evidence is indistinguishable from evolution.

  
cryptoguru



Posts: 53
Joined: Jan. 2015

(Permalink) Posted: Feb. 19 2015,17:47   

Quote
The Avida instruction set includes mov-head, jmp-head, and set-flow. Turing-completeness implies that if the Avida instruction set is inadequate to model what Cryptoguru wants modeled


actually yes you are correct, I forgot that non-linearity is modelled as part of the instruction set through the ability to move the head. I was being stupid about that ... Scratch that part of my argument.

The rest of my argument still holds ... Avida is rewarding by comparing to a known target on the level of complexity directly above the instruction set, not on the level of the organism. Even if it was on the level of the organism it is still cheating by having knowledge of an advantageous target.
Comparing to a known target (in Avida's case, known logical functions) is a confessed cheat of the Weasel algorithm by Dawkins, the same logic holds for Avida.

  
Wesley R. Elsberry



Posts: 4991
Joined: May 2002

(Permalink) Posted: Feb. 19 2015,18:27   

Quote (cryptoguru @ Feb. 19 2015,17:47)
 
Quote
The Avida instruction set includes mov-head, jmp-head, and set-flow. Turing-completeness implies that if the Avida instruction set is inadequate to model what Cryptoguru wants modeled


actually yes you are correct, I forgot that non-linearity is modelled as part of the instruction set through the ability to move the head. I was being stupid about that ... Scratch that part of my argument.

The rest of my argument still holds ... Avida is rewarding by comparing to a known target on the level of complexity directly above the instruction set, not on the level of the organism. Even if it was on the level of the organism it is still cheating by having knowledge of an advantageous target.
Comparing to a known target (in Avida's case, known logical functions) is a confessed cheat of the Weasel algorithm by Dawkins, the same logic holds for Avida.

Well, of course we'll scratch the "linear vs. non-linear" part of Cryptoguru's argument, since we long ago recognized it as rubbish, provided the explanation of why it was rubbish, and had it resurrected as a pathetic zombie argument.

All Cryptoguru's premises have been wrong, but the argument is still just fine.

Riiiiiiii-ghghghghght.

I've already addressed the "level of complexity" issue, and that was irrelevant to the original challenge. If Cryptoguru wants to move on from the original challenge, that is easy: he can just admit that his original challenge was met and *then* propose another challenge.

I've also addressed the level of selection issue, and Cryptoguru remains mistaken on that point. Looking back...

Me:

 
Quote

Avida does not examine the genomic instruction sequence to recognize something. It examines the output from the IO instruction of the Avidian that indicates that it correctly performed a behavior, in the Lenski et al. 2003 paper the rewarded behaviors comprised a set of nine logic operations. An Avidian can internally compute every logic function around and receive exactly zero extra CPU cycles of merit if it fails to output the results to the environment via the IO instruction. I've already mentioned this before. The assertion that things are otherwise is a persistent misunderstanding on Cryptoguru's part.

Avida's award of merit for Avidian behaviors is analogous to biological organisms getting better/more nutrition, or greater movement efficiency, or better artifact construction (nest, hive, or tools) due to a favorable trait. There is really nothing to object to on this point, and this is no problem for the model.

As far as the final quoted sentence goes, some traits have to have relative benefits in order to simulate natural selection. This has to happen in the model since it happens in biology. This is not a problem for the model.


And, no, "the same logic" does not hold for Avida as for "weasel". It's pretty breathtakingly inane to think it would.

Cryptoguru seems to think that repetition somehow makes discredited claims better.

--------------
"You can't teach an old dogma new tricks." - Dorothy Parker

    
Soapy Sam



Posts: 659
Joined: Jan. 2012

(Permalink) Posted: Feb. 19 2015,19:08   

Quote (midwifetoad @ Feb. 19 2015,19:53)
Well, Wagner has some interesting things to say about the minimum viable set of metabolic products, and what is necessary to live on limited food supplies, and his analysis may or may not be original.

But he does credit others for doing the actual research supporting his "Library of Babel" metaphor.

His primary claim is that the number of viable genomic configurations is hyper-astronomical, and that viable configurations are connectable by mutation sized steps.

That answers Behe's Edge claim, and it answers Dembski's Search for a Search Claim.

For dessert, he brings up the Avida-sounding digital logic experiment, which he claims supports the idea that connectedness and evolvability are expected attributes of any complex system. In other words, not fine tuned.

It should be noted that multi-base mechanisms blast through even those barriers which might restrict point-mutational space. Eukaryotic recombination moves far more quickly, and to places otherwise unreachable stepwise. The same goes for LGT. It is clear that motifs, having proven their capacity in one protein, find themselves shuffled into others by various means. It is probable, or certainly possible,  that all proteins have their basis in one ur-protein, segmentally duplicated and changed, rather than a repertoire that-many-bases long to start with gradually amending, base by base.

Edited by Soapy Sam on Feb. 20 2015,14:24

--------------
SoapySam is a pathetic asswiper. Joe G

BTW, when you make little jabs like “I thought basic logic was one thing UDers could handle,” you come off looking especially silly when you turn out to be wrong. - Barry Arrington

  
midwifetoad



Posts: 4003
Joined: Mar. 2008

(Permalink) Posted: Feb. 19 2015,19:20   

Well gpuccio at UD is fond of arguing that protein domains appear not to share any code. Wagner doesn't address this, but he does argue that sequences can be replaced one loci at a time until little or nothing is left of the original. Either by conserving function or by finding viable replacement functions.

He also points out that microbes are constantly sharing their inventions. So one lineage does not have to evolve everything.

I don't have the knowledge to evaluate this, but it's on my list of ideas to watch.

--------------
Any version of ID consistent with all the evidence is indistinguishable from evolution.

  
The whole truth



Posts: 1554
Joined: Jan. 2012

(Permalink) Posted: Feb. 19 2015,22:14   

cryptoguru, do you believe that your chosen, so-called 'God' designed, created, and guides the entire universe, including all 'natural laws' and 'natural systems'?

--------------
Think not that I am come to send peace on earth: I came not to send peace, but a sword. - Jesus in Matthew 10:34

But those mine enemies, which would not that I should reign over them, bring hither, and slay them before me. -Jesus in Luke 19:27

   
cryptoguru



Posts: 53
Joined: Jan. 2015

(Permalink) Posted: Feb. 20 2015,04:01   

Wes, it seems either you're not able to see the issue here or you really don't want to. It's a simple issue to understand.
Pretending that rewarding the organism for achieving a target is a natural thing, is cheating when you have an algorithm that is testing the organism to see if it passes a specific test. In doing this you are biasing the organisms that you know are approaching a known solution.

AVIDA has made it so that the test for reward is a known building block of the final solution. This would be like having an exhaustive list of component parts that we know could build an airplane if we had the correct amount in the correct order. We would never expect to randomly be able to vary the list and order of components as well as assembly instructions to get the final result, so we work on assembling simple modules; small modules containing a few components. We optimise the search for components that build modules that we know are needed for the airplane. If the algorithm manages to create a component by chance, we reward the algorithm that produced it so that it out-survives the other algorithms that have not found a component. Before long we should expect to have a few modules that may work together to perform another task that we were expecting.
This algorithm could work (if a module can be made with a small amount of components) and a functional collection of modules would also need to only require a small number of modules.
This is how AVIDA is working ... it knows the modules that are needed, and it knows the final possible collective-module functions ... so it enforces targets. AVIDA also has known logical functions that don't require many commands in the correct order. Remember most of the commands in AVIDA are commutative, so a lot of the time (for boolean logic) the order of commands is not important (e.g. 1 & 0 & 1 & 1 can be re-written in any order). Therefore AVIDA has it easier than the airplane, because there is not an infinite number of ways of building a known physical module for an airplane that is functional. Also we known that finding logical functions that are a combination of commands is of a low order of complexity (tens of commands, not thousands) ... this matters, as the difficulty in finding a combination to reward will exponentiate as the problem space increases. Nevertheless, the enforced target both at the logical function level and the final solution level is artificial and enforced by the intelligence of the algorithm ... you can pretend it's modelling feeding, movement or some other natural advantage, but this is no more a natural advantage than sending a random sequence of words to a speech engine and when you get a few words together that make sense by comparing with known sentences play that through speakers and claim that the computer is artificially intelligent.

I understand that for your world-view to be correct this is a CORE issue, you need to be able to show that information can arise automatically. It's pretty obvious that's not what's happening here. I don't expect you to agree with me ... that would be equivalent to you saying that natural processes can't or haven't been observed to bring specified complexity out of random noise without intelligent interaction. That ain't gonna happen, unless you find Jesus and have a conversion experience and change your mind to believe in a creator  ... then you may find your mind is open to more rational argument.

As I've said before, my world-view permits things that both arise through natural mechanisms and those that can arise through supernatural (outside of our physical universe) causation. You cannot permit supernatural causation in your world-view, so you must explain everything through natural causation, even if it doesn't naturally fit. Who has the closed mind? The evidence and the logic points in the direction of intelligent causation of information ... you're trying to argue that problem-solving designs can emerge from noise. I sure hope you don't work in engineering or software dev :-)

Ironically, I bet you are willing to accept the "supernatural" causation of other universes or dimensions outside of our own measurable and observable universe to answer difficult cosmological questions about origins ... but just not an intelligence ... presumably because you may have to account to them for your actions.

I think we're done here, and yes you've answered some questions, but not with satisfactory answers; you've ducked and dived the key points. I have admitted the part I had presumed and got wrong (about AVIDA being linear), can you admit your incorrect presumptions?

  
Cubist



Posts: 558
Joined: Oct. 2007

(Permalink) Posted: Feb. 20 2015,04:13   

Quote (cryptoguru @ Feb. 20 2015,04:01)
Wes, it seems either you're not able to see the issue here or…

Hi, cryptoguru! I see that you haven't yet clarified what you mean when you talk about "genetic material" that's "new" and/or "novel" and/or "unique" and/or "quantifiably non-trivial". I sure hope you can explain your terms… but if you don't, that's okay, because I can re-post my questions as many times as it takes before you actually do answer them. Seeya later!

  
cryptoguru



Posts: 53
Joined: Jan. 2015

(Permalink) Posted: Feb. 20 2015,04:59   

Cubist: I did answer your question, you just didn't understand the answer.

I explained what I mean by "new" and "novel" for the purposes of this discussion, is that which is too difficult to arise from a purely random event. i.e. one which would probabilistically require natural selection through competition and could not just arise through just a sequence of mutation events.
I would not expect to randomly arrive at a meaningful sentence by randomly selecting letters, however I may expect to get a short 3 or 4-letter word randomly.

You believe that natural selection is the agent that turns random events into information.

So we need to be able to differentiate between noise and information; a sequence of symbols that has specified meaning ... i.e. it solves a problem

Example:
this point deletion creates a new string ... but it is not information, we can't differentiate it from noise, even if it was advantageous we can't call it information yet.
gacgtacga
gcgtacga

this sequence of new symbols (not pre-existant) could be new information
gacgtacga
gacgtacgattcaatgact

we don't known that until we show that the new string does something (has meaning) and is advantageous. Also a new string that small could potentially arise through mutation without any selective guidance.

So I'm back to using ORFan genes, we know that they are functional and advantageous and they have no known ancestor, they are new information and they are significantly large enough to be impossible to achieve purely randomly.
Sure there are things smaller than this that could be information, but how do we know they are? In the case of ORFan genes we have a clear example of new genetic material that is useful to the organism and not pre-existing that would require something other than pure dumb-luck to occur.

So I'm asking for a demonstration of new information on this level (ORFan gene size) to arise out of purely random mutation and natural selection, without using intelligently applied known targets to artificially guide the selective process.

DO YOU UNDERSTAND MY QUESTION YET???
(or do you not want to understand it?)

  
The whole truth



Posts: 1554
Joined: Jan. 2012

(Permalink) Posted: Feb. 20 2015,05:18   

"...unless you find Jesus and have a conversion experience and change your mind to believe in a creator  ... then you may find your mind is open to more rational argument."

Who or what is the "Jesus" thing?

Hey cryptoguru, supernatural green clad leprechauns, rainbow trout, and pink unicorns designed, created, and guide everything in the entire universe and everything outside the universe. See, I'm open minded! More open minded than you!

Edited by The whole truth on Feb. 20 2015,03:18

--------------
Think not that I am come to send peace on earth: I came not to send peace, but a sword. - Jesus in Matthew 10:34

But those mine enemies, which would not that I should reign over them, bring hither, and slay them before me. -Jesus in Luke 19:27

   
cryptoguru



Posts: 53
Joined: Jan. 2015

(Permalink) Posted: Feb. 20 2015,05:29   

Quote
Who or what is the "Jesus" thing?

I'm sure there's a church running an Alpha course near you where you could get the answer to that question.

Quote
supernatural green clad leprechauns, rainbow trout, and pink unicorns designed, created, and guide everything in the entire universe and everything outside the universe. See, I'm open minded! More open minded than you!

Yeah maybe, but you wouldn't be rational if you believed those things ... I'm having a rational discussion about my beliefs on origins. I'm not arguing for ANY supernatural causation, just one that is rational. The designer would have to be infinite in temporal existence, knowledge, presence and power to be able to fulfil the requirement of the infinite regression argument (i.e. who created God?). That rules out trout, unicorns, leprechauns or any other finite beings or creatures.

  
Wesley R. Elsberry



Posts: 4991
Joined: May 2002

(Permalink) Posted: Feb. 20 2015,05:36   

A little re-orientation on the relation between merit and Avidians may be in order. I'll refer to work I did during my post-doc for illustration.

I extended Avida to permit Avidians to move about the Avida grid. Instead of 26 instructions, there were 29 used in the experiments related in the paper. The new instructions were sense-diff-facing (put a value of the difference between a resource at the current grid cell and the grid cell the Avidian was facing into a register), move (caused the Avidian to move into the grid cell it was facing), and tumble (randomly changed the facing of the Avidian to another adjacent grid cell). I used a rectangular bounded grid with dimensions of 111 by 101 cells. I also used a resource distribution with high levels in one region of the grid and a gradient of that resource distributed over the rest of the grid:



Note that all information regarding the resource distribution that is available to an Avidian is strictly local, referring only to resources in two adjacent cells.

As in biology, movement has a cost. It cost my Avidians 2% of their merit for each step they took in an executed move instruction. Merit was only awarded as a result of an executed move instruction, and the amount of merit received was a function of the concentration of the resource in the new grid cell the Avidian moved into. This, again, matches what we see in biology: organisms are rewarded for behavior that brings them into contact with greater resources. (It also illustrates handily the fallacy in claiming that there is anything untoward about an Avidian receiving merit for something it does as a behavior.)

The initial organism in the experimental runs was the classic seed Avidian (it has the ability to self-replicate and does nothing else). I collected aggregate "visit" data for the cell grid over intervals of 5,000 updates. Here is a snapshot of a run that had a hand-coded random-walk organism injected at the start and mutation turned off:



Visits in that "check" run were, of course, uncorrelated with the resource distribution.

Here's a series of snapshots made of visits in an experimental run:



In that run, one can see that a variety of movement strategies evolve and become common in the population.

The terms I used for the three most commonly-seen movement strategies were the basis for the paper title: Cockroaches, Drunkards, and Climbers.







The Climber strategy corresponds to programs in the class of optimal responses to the given resource distribution, implementing gradient ascent. A few examples of test runs featuring three different single Avidians and their responses to the resource gradient of the experimental runs:







Of course, one would also like to see that the programs resulting are not, somehow, exploiting some other regularity in the experimental setup besides the resource distribution. So taking the Climber Avidian from that last graph and injecting it into a test run with randomly-placed resource peaks gives these sets of visits:







Something important to note here is that there is no explicit fitness function. Avidians moving around in regions of greater resources get greater merit, just like biological organisms do better when they are in areas with better resources. And there is no "target" at all. There is nothing in this experiment that checks for any particular type of response; the entirety of merit reward is strictly limited to the environmental distribution of the resource. There is no reliance on any hierarchy of rewards. Some movement strategies are relatively more efficient at exploiting the given resource than others, and that is sufficient to drive the evolution of a variety of movement strategies, including those in the optimal class of programs for this context.

--------------
"You can't teach an old dogma new tricks." - Dorothy Parker

    
  336 replies since Jan. 16 2015,08:04 < Next Oldest | Next Newest >  

Pages: (12) < ... 3 4 5 6 7 [8] 9 10 11 12 >   


Track this topic Email this topic Print this topic

[ Read the Board Rules ] | [Useful Links] | [Evolving Designs]