Even if some of the known laws of physics
didn't apply, I see no value in throwing away the "concept" of causality in
order to allow the Big Bang to have affected an infinite volume of space and
an infinite quantity of matter.
In the analogy of the imaginary infinite straight line with infinitely many tick
marks, the tick marks start out with some particular spacing because I gave
them that spacing. The tick marks were all causally connected to me. In the
actual Universe, an infinte volume and infinite quantity of matter cannot be
causally connected that way.
-- Jeff, in Minneapolis