On 13 May 2015, at 18:31, David Nyman wrote:
On 13 May 2015 at 17:14, Quentin Anciaux <[email protected]> wrote:
why should they predominate ? They should only have higher
probability relatively to you.. you're in that class of observers,
that certainly constrains what you can observe... there are many
more insects than humans, yet, you're human... and should not expect
to be a mosquito the next second. We could be absolutely rare, only
a geographical incident in the whole and yet if the whole is... such
observers as ourselves observing consistent physical environment
must be.
Well, if I were a mosquito, I wouldn't of course be participating in
this conversation. So ideally I would want to be able to justify why
the kind of observer capable of this class of interaction might be
restricted to 'physical' environments of the sort we observe. I
think this may be related to Bruno's idea that our being embedded in
an observably 'physical' environment is more than merely
geographical - i.e. that we are somehow the beneficiaries of some
'absolute' measure battle for the emergence of observably 'lawlike'
phenomena.
Quentin is right that the predominance is not absolute, but only
relative to us. Now, what we can find below our same and sharable
subst level has to obey the same law everywhere, as it is defined by
the same "sum" on all computation everywhere. The quantum laws are a
very good candidate for that universal physics, but the hamiltonian
might be more variable; yet still obey conditional laws, etc.
Computationalism offers a criterion to distinguish geography from
physics, but it might not be the according to fact that the "real
physics" is given by S4Grz1, Z1*, or X1* ([]p & p, etc.).
Bruno
David
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