[ars]

Yes, we expect the laws of mathematics to still apply.

The laws of physics also apply, but we don't know all of them. For example Newtonian physical vs. relativity. Both are correct, but one only comes into play at high velocity or energy. Same with the big bang, there may be a more complete description of what happens that only comes into play at high energy.

This doesn't mean the current laws don't apply, but rather they are inaccurate, but we can't tell since the inaccuracy is too small at our energy level.

[Retric]

A much better mental model of this stuff is Newtonian mechanics is always wrong at every scale. At human masses, velocity's and time scales you can't detect the error but it's still there.

As such the physical laws are unchanged at the big bang, but the simpler aproximations in current use may be noticeably off at these scales. If they are, then they would also be wrong at all other timescales and energy levels etc. The trick is looking for edge cases we can detect that seperate our aproximations from the actual laws running reality.

Given all that; simpler aproximations continue to be useful as long as the errors are hard to detect.

[collyw]

>The laws of physics also apply, but we don't know all of them.

Classic. Making it up as you go along.....