On 21 Oct 2014, at 00:24, LizR wrote:
On 21 October 2014 04:06, Bruno Marchal <marc...@ulb.ac.be> wrote:
On 20 Oct 2014, at 01:20, LizR wrote:
Hi Richard
I'm only on page 2 of your paper, but already confused. You appear
to be positing that a mathematical universe might have a physical
underpinning. If so, this rather defangs the MUH,
OK.
which obtains its importance from being logically prior to (the
appearance of) a material universe. Without that assumption
Which assumption?
The assumption that the MUH makes mathematics logically prior to a
material universe.
is that not part of the MUH?
Of course the MUH is too vague, as we have no definition of what is
mathematics. Logicians knows that this is a very difficult question,
and eveidence is that we just cannot define "mathematics" in general..
there seems no point in the MUH, since one is back needing to
explain "something from nothing" to obtain the underlying physical
universe. (Similarly with the CUH and Comp, of course.)
What is similar?
It is similar in that the CUH
What is the CUH? Is is digiotal physics, the idea of a computable
universe? This is inconsistent, or emliminate consciousness like
(primitive) materialism.
and comp derive the appearance of a material universe from something
more abstract, such as maths and computations.
Comp needs to assume a precise and tiny part of arithmetic. The rest
is explaiend in the epistemology of the machines, which are part of
that tiny amount of arithmetic.
I would appreciate if you could just clarify a little bit.
I've tried :-)
Thanks :)
Bruno
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