qetzal
Posts: 311 Joined: Feb. 2006
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Quote (Joy @ Feb. 09 2010,23:35) | qetzal: Quote | Note: I'm not claiming this as evidence against a purpose to life. Only that it's not evidence for a purpose. |
That's why I qualified the statement to "this end of the scale." While all life forms we know of act/react to stimulus (process information) and display some signs of volition - jury's still out on viruses as life forms - not all life forms are 'conscious'. According to the Hameroff-Penrose model, there is a numerical quantification for the appearance of that phenomenon.
I'd argue in favor of all conscious life forms having 'purpose' (to include self-purpose), even if it seems trivial to us. |
So only conscious life necessarily has a purpose, but that purpose might be nothing more than 'survive and reproduce.' Is that what you're saying? If so, how does that support your belief that life is intentional? As I already noted, the 'purpose' of surviving and reproducing can be readily explained without supposing that the first life arose through intentional agency.
Quote (Joy @ Feb. 10 2010,10:02) | Just have to chuckle sometimes at the stubborn refusal of biologists to credit anything to physics. |
Weren't you the one arguing that life requires more than just a specific arrangement of atoms? Seems to me that's the ultimate refusal to credit physics.
But I'll guess that you're referring more to stuff like Penrose-Hameroff, right? The thing is, biologists are more than happy to credit physics when the empirical evidence supports it. Last I knew, Penrose, Hameroff, and others like them were still at the hand-wavy speculation stage, with their ideas about quantum consciousness, Orch-OR, et al. I'm not aware that they've developed any significant evidence to support such ideas.* If they ever do, I'm confident that biologists will take more notice.
Might still take a while, of course, due to differences between disciplines, inertia, etc. But saying that biologists refuse to credit physics strikes me as either ignorant or disingenuous.
+++++ *If you think otherwise, feel free to provide a link. But please, no links about how microtubules might do this or might collapse that. If there's evidence that they really do that, and that it is related to consciousness, great - let's see it. Otherwise it's still hand-wavy speculation, and isn't (yet) deserving of significant credit from anyone.
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