[longshadow]

Being a smart-aleck, the next question I'm likely to ask is "What happened before that?"

BB Cosmology involves the idea that space AND time come into existence concurrently at t=0. Therefore, by definition, there is no such thing as t<0. Hence, there is no "before" the BB, as the word "before" presupposes the ability to establish temporal order, and if there is no "time" then there can be no temporal order.

The standard way of illustrating this is to use the analogy that asking what is "before" the BB is like asking what is North of the North pole, or what is colder than absolute zero.

[Oberon]

BB Cosmology involves the idea that space AND time come into existence concurrently at t=0.

Well, of course. It would have to.

[MHGinTN]

The other quantum events that occur as 'BB's' that flash out of our universe, do those happen in a field of spacetime, our spacetime, even if only for a moment? If so, would that infer a background dimensional field out of which our 'BB' bubbled?