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 Topic: Dave Heddle Stat Chat < Next Oldest | Next Newest >
stevestory

Posts: 10960
Joined: Oct. 2005

Here's a thread where Heddle can continue his arguments, be they 1 the 120 OOM difference between the CC and the naive expectation of what it would be, proves ID
2 the 60 OOM size of the CC in reduced Planck units, proves ID
3 the unknown ratio deltaCC/CC, called Sensitivity, proves ID

or some new one, whatever that may be. I won't be participating unless he actually gives us a number for Sensitivity.

heddle

Posts: 124
Joined: Nov. 2005

Steve,

Since you went to the trouble of setting up this thread, maybe we can have a serious discussion of fine tuning and others can join in. However, the tone of your first post does not indicate that you are actually interested in a serious deliberation.

I’ll start general comment regarding your three points. Can you provide a link, anywhere, on PT or my blog or anywhere, where I said that any of these points (even if I had made the points as you present them) proves ID? If so I’ll retract it. A think that any reasonable person reading what I have written on this subject or attending one of my talks would acknowledge that I have presented the CC fine tuning as one of many examples of fine tuning, and it is the totality of the fine tuning that makes, from Occam’s razor, Cosmological ID the preferred choice (over, say, mulitverses). In short, I have never even stated that all the fine tuning, let alone a single example of it, “proves” ID.

 Quote 1. the 120 OOM difference between the CC and the naive expectation of what it would be, proves ID

I have already addressed that I never claimed it proved ID, and again I ask for a link. I wonder why you say “naïve expectation?” Could it be that you believe the theoretical calculations are on shaky ground? Have you investigated the quantum-gravity and GUT field-theoretic calculations that have been done, and feel justified in characterizing them as naïve? Does it bother you that when people like Krauss or Weinberg or Hawking discuss the discrepancy between theory and observation they never simply shrug it off as merely reflecting the naiveté of the calculations?

 Quote 2. “the 60 OOM size of the CC in reduced Planck units, proves ID”

I have already addressed that I never claimed it proved ID, and again I ask for a link. The 60 OOM, if I used it, probably referred to the matter density or the expansion rate and not the CC.

 Quote 3. the unknown ratio deltaCC/CC, called Sensitivity, proves ID

I have already addressed that I never claimed it proved ID, and again I ask for a link. I have also provided a conservative upper limit estimate for the fractional sensitivity of the CC of one percent.

Now, on the whole issue of sensitivity, I want to point out that this is not a new concept in the fine tuning arguments. People have always argued (right or wrong) things like if the n/p mass ratio changed by, say, two percent then the universe couldn’t support life. That is the way all fine tuning arguments tend to be presented (except the CC, which has the additional twist of 120 OOM discrepancy between theory and observation). You keep bringing it up like it is some new twist to the fine tuning argument that I invented. When I talk I do emphasize that the sensitivity is what is important, not the lack of a fundamental theory that explains the values of the physical constants.

Finally, you placed this ultimatum on me:
 Quote I won't be participating unless he actually gives us a number for Sensitivity.”

For the CC I did: less than 1%. For the n/p mass ratio I did: ~2%. I’ll give estimates for all or most of the fine tuning examples I know of.

But now my ultimatium. I am not going to waste my time arguing with someone who has demonstrated that they cannot admit error. I certainly can, I have done so on PT. And if you provide the links where I claimed any of your points 1-3 proved ID I’ll admit I was wrong. Now you you need to admit you were wrong, or explain how you were misinterpreted when .you wrote:

 Quote It remains a fact that your 120 OOM is particular to a set of units.

Shortly followed by:

 Quote Obviously if you compare two numbers in any given system, their relative size doesn’t change by switching to a different system. That’s obviously not what I was talking about.

It is not obvious at all. Unless I see some semblance of intellectual honesty, so I know I won’t be wasting my time, then I won’t participate.

--------------
Mysticism is a rational enterprise. Religion is not. The mystic has recognized something about the nature of consciousness prior to thought, and this recognition is susceptible to rational discussion. The mystic has reason for what he believes, and these reasons are empirical. --Sam Harris

stevestory

Posts: 10960
Joined: Oct. 2005

This is the last time I will ever correct you, Mr. Heddle. It's just not worth my time. Here we go.

Dave Heddle:
 Quote I wonder why you say “naïve expectation?” Could it be that you believe the theoretical calculations are on shaky ground? Have you investigated the quantum-gravity and GUT field-theoretic calculations that have been done, and feel justified in characterizing them as naïve? Does it bother you that when people like Krauss or Weinberg or Hawking discuss the discrepancy between theory and observation they never simply shrug it off as merely reflecting the naiveté of the calculations?

Lawrence M. Krauss and Michael S. Turner:
 Quote However, no symmetry principle has yet been found that guarantees a zerovalue for the vacuum energy, and quantum-cosmological arguments currently rely onthe shaky foundations of Euclidean quantum gravity. It could be then that whatevermechanism does diminish the cosmological constant below one’s naive estimates doesnot involve an exact symmetry and leaves a small vacuum energy.

Over and Out.

heddle

Posts: 124
Joined: Nov. 2005

In case anyone wonders why Steve didn't give a reference for his quote, it is from the paper of almost 11 years ago that is generally credited with reintroducing the cosmologicial constant into cosmology.

The paper is here.

In that paper, a naive estimate is provided that demonstrated the enormity of the problem. For Steve to be correct, the community must have acted with indifference over the last 10 years, not doing any more calculations, in spite of the fact the the CC problem is one of the most exciting in physics.  For those interested, I can provide references to calculations. If you have trouble with the field theory, Steve finds it naive, so ask him.

--------------
Mysticism is a rational enterprise. Religion is not. The mystic has recognized something about the nature of consciousness prior to thought, and this recognition is susceptible to rational discussion. The mystic has reason for what he believes, and these reasons are empirical. --Sam Harris

stevestory

Posts: 10960
Joined: Oct. 2005

Your totality argument is nonsense. Squint Theory is much more conclusive.

Squint at an object. If it looks designed, it was!

See watch me squint at some fibrinogen...

stevestory

Posts: 10960
Joined: Oct. 2005

And Dave, you really need to get a new name for your ideas. ID is something different.

The world's most recognized expert in ID, William Dembski, said: ""intelligent design is just the Logos theology of John's Gospel restated in the idiom of information theory."

Now unless I missing something, your Sensitravisty is neither information theory nor John's Gospel. So you should change the name of your argument.

 5 replies since Nov. 20 2005,15:28 < Next Oldest | Next Newest >

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