[Haskell-cafe] Re: Quanta. Was: Wikipedia on first-class object
wnoise at ofb.net
Sun Jan 6 19:04:43 EST 2008
On 2008-01-06, ChrisK <haskell at list.mightyreason.com> wrote:
> Brandon S. Allbery KF8NH wrote:
>> On Jan 6, 2008, at 15:02 , Ketil Malde wrote:
>>> More seriously, perhaps "quantum" enters into the equation in how the
>>> brain works, perhaps it is even necessary for "thought". However, I
>>> get worried it's just another mystical mantra, a gratuitous factor
>>> that, lacking any theory about how and what it does, adds nothing to
>>> help understanding the issue.
> The brain, being real, is best modeled by a final theory that physicists have
> not yet (noticed) written down.
> "how the brain works" appears to be though electro- and bio- chemistry, which
> are best modeled/described right now by quantum mechanics.
Quantum mechanics models these, but for most domains it's a substrate
that is unnecessary -- modeling at the level of chemistry works.
> There are observable quantum correlations that cannot be described by a
> "classical" theory.
Not in the brain. It's *way* too warm and squishy.
> So long as the processes you care about (e.g. whatever the hell consciousness
> is) do not use these non-classical correlations then you can create a simplified
> model that avoids the complexity of quantum theory.
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