Hello Everythingers,

   I was introduced to this list by Jurgen Schmidhuber, who spoke at a
meeting that we had here in Linz in 2005. A very interesting meeting
with Ed Fredkin, Tom Toffoli, Karl Svozil and a few others to make it
a very full couple of days.

   One of the recurring ideas here is that of "mathematicalism" - an  
idea
that I understand to be that we perceive things as physical that have  
a certain
mathematical structure. One of the "everything" ideas that results is  
that
only certain of the all-possible universes have the right stuff to be
perceivable, the right mathematical structure. We are in one such  
universe,
and there are others.

Are there any people working on the idea of what these structures should
be like? The questions that seem relevant include:
What are the properties of a system such that is can be perceived
in a way that we regard as being "physical?" Are there requirements for
3D ness? If we were in another universe, would we perceive it  
differently?
Do we only perceive the world as being mathematicsl ("the  
unreasonable effectiveness
of mathematics") because of our brain wiring? Or are our brains wired  
that way
because the world is mathematical in that way?

We are putting together a third Data Ecologies meeting this year
with a theme complex around model building, perception, complexity
and related ideas. We would be interested whether anybody from here
might be able to speak about these ideas. Anybody?

please follow up to the list or to me directly, as appropriate....

Tim

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