On 05 May 2014, at 01:36, LizR wrote:

On 5 May 2014 08:42, John Mikes <jami...@gmail.com> wrote:
In "my" agnostic vocabulary the 'real' includes lots of 'inconnues' that may change whatever we THINK is included - as historic examples show. I still hold mathematics an exorbitant achievement of the H U M A N mind

What do you think of Max Tegmark's argument for "mathematical realism" - that all the clues we have so far indicate that nature is inherently mathematical, and that if we ever find a ToE, and it turns out to be "just a bunch of equations", then there will be no reason to think the universe is anything other than those equations - as he puts it, "how they look from the inside" ?

Obviously this is speculative, of course,

Well, it is a logical consequence of comp and the weak occam, and I would say that all theories are speculative, but some more, some less.





in that we don't have a ToE yet.

Come on. I gave a scheme of equivalent TOE.
May be you mean that the mainstream thought has not yet swallow that. OK, that will take time. We will plausibly become artificial machines before understanding the consequences.




But everything we have learnt about reality so far does appear to indicate it has (in some sense) a mathematical nature. If this trend continues and we eventually discover a TOE, and it is mathematical, would you agree with Max that maths isn't an invention of the human mind, but something we have discovered about reality? (That it is even, perhaps, ALL that reality is?)

But I don't think that the term math is precise enough. It is too big, and cannot be itself entirely mathematical. But with comp, the 3p truth is arithmetical, and the 1p truth is vastly mathematical, yet got some irreductible non computable and non digital theological or psychological aspects.





The facts WE can calculate from Nature do not evidence a similar calculation how Nature arrived at them. (See the early (even recent???) explanatory errors in our sciences). We are nowhere to decipher Nature's analogue(?) ways (if 'analogue' covers them all, what I would not suggest).

Relativity is analogue, quantum mechanics is (perhaps) digital. However, assuming that nature is analogue - i.e., continuously differentiable - doesn't mean that it isn't inherently mathematical.

Indeed. And comp justifies entirely why the 3p big thing can be digital/arithmetical, yet should appear bigger from inside.

Bruno





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