On 2/26/2013 1:46 PM, John Mikes wrote:
Brent: forgive my weak 'brain': in the turmoil of BackAndForces on this list it faded
what you (really?) mean by
quasi classical physics
I mean the world model of Newton and Maxwell plus a little randomness from QM: consisting
of distinct objects in definite locations, not wave functions in infinite dimensional
Hilbert space.
brains
Biological information processors found within skulls.
and what 'ideas' is (your) 'comp' based on?
?? My comp?
I think whatever we 'experience' is a (fortunate?) anthropic accident
(incident?).
<I put (your) to comp, because I am not sure about Bruno's "IF true" - and you did not
refer to it either. >
Dinos? We know so little about the past of this world - even about not-so ancient HUMAN
past (Dravidians) so infulential into our present world. Or how the Simians straightened
up their spine to become human? (I am in favor of the 'aequatic ape' dream). And others.
Dinosaurs were just an example. I wondered what Bruno meant by saying we were here from
the beginning. Was he denying there was a pre-human past?
I hope you are not talking about TOE derived at Dino-time, or later.
(BTW: was a */neuron/* of a dino bigger than that of today's mouse?
With what size atoms? I asked this questions from many bio-people over the past 50 years
- no answer so far.
Some of them were certainly longer.
Isaac Asimov once speculated that the size of dinosaurs was limited because the larger an
animal the faster it can run, but dinosaurs had unmylenated neurons (like those in our
brains) which are quite slow in transmitting signals. So when a dinosaur got very big he
could run off a cliff right in front of him because the signal from his eyes to brain to
feet would propagate more slowly than his forward motion. :-)
Brent
Maybe the Savants of this list can answer it?)
JM
On Tue, Feb 26, 2013 at 4:03 PM, meekerdb <meeke...@verizon.net
<mailto:meeke...@verizon.net>> wrote:
On 2/26/2013 4:50 AM, Bruno Marchal wrote:
That does not work. We belong automatically to an infinity of computations.
With
comp, the physical reality is unique, and derivable from 0, s, + and * (and
the
usual axioms). But cosmos or branch of a multiverse can be numerous, but
before
they differentiated, we are in all of them.
That raises questions like, "Where were we when dinosaurs roamed the
Earth?" Or
more generally does the physics of every universe consistent with comp
include
quasi-classical physics? It seems that it is necessary for brains to exist
and to
have the ideas on which comp is based. Are we to regard this as just a
fortunate
anthropic accident?
Brent
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