On 8/25/2019 11:10 AM, Philip Thrift wrote:
On Sunday, August 25, 2019 at 12:38:17 PM UTC-5, Brent wrote:
A mathematical structure is a relation between propositions
defined by some rules of deduction. It is static. It has no
"accidental" or as Bruno would say "geographic" features. Two
mathematical structures can be isomorphic precisely because of
this. It is impossible that a mathematical and a physical
structure be isomorophic. That is just a loose way of talking
that assumes we will abstract away enough of the physical
structure so that the remainder can be represented mathematically
and then that can be isomorphic to some other mathematical structure.
Brent
Once one eliminates Platonism and accepts that mathematics is
programming
<https://codicalist.wordpress.com/2019/08/22/arche-programming/> then
all of physics (what humans have thought of to model the cosmos) can
be found in the numerical relativity and quantum simulation programs
running on computers.
So a program and a "physical structure" are only isomorphic if the
universe itself is a simulation.
And if the universe itself is a simulation..."simulation" is
meaningless. Something can only be a simulation if it is within and
open to some bigger environment.
Brent
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