On Tue, Jul 10, 2012  Evgenii Rudnyi <use...@rudnyi.ru> wrote:


>  > I understand but the question in principle still remains. Who play the
> chess, I or the M-theory?
>

There is no logical reason to think those two ways of explaining the same
phenomenon are incompatible. It's true that the reason a toy balloon
doesn't collapse is that the momentum of gas atoms inside the balloon
impacting the surface is greater than or equal to that of the gas atoms
outside the balloon impacting the surface, but it's also true that the
reason is just that the pressure inside is greater. Sometimes humans find
that a high level description and explanation is more useful and sometimes
they do not. Trying to understand how hurricanes work by looking at the
level of atoms would not be very enlightening, and super-strings would be
even less helpful.

  John K Clark

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