The mental ease with which you dismiss questions as meaningless., as you appear to do the same with what happened before time or what exists outside of this universe.
My understanding of the concepts renders the questions nonsensical.
I dont think they are the similar in this sense, because time has no opposite whereas for something we have nothing.
Nothing isn't the opposite of something, it's the absence of it.
So asking what the opposite of something that has not opposite is difficult (although still cannot be just dismissed as meaningless). However I can see where you are coming from & it certainly is difficult to comprehend a position without space.
I find it impossible. Maybe you are just a lot smarter than me.
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As opposed to time there some elements of 'something' we can envisage a position without it. Think of what you were before you were born, what the internet was in the year 1000 A.D - they didnt exist, they were nothing. Now if you apply this concept to everything, then we have the totality of nothing. Hopefully you can envisage this position, at least theoretically, a bit better now.
Sure I can understand what are you trying to describe and why it would lead you to make a certain conclusion, but envisioning it is something else. Much like I can work out that 248820/319=780. But I cannot imagine 248820 being divided into 319 parts. I understand what you mean by 'nothing', but I cannot envisage it, 'something' always gets in the way. In the same way, I think perhaps in the real world 'nothing' can't exist because 'something' is an attention whore. Maybe something HAS to exist because there are no other stable states. And I really don't see the point of debating why a concept that I can't comprehend, and whose existence there is no proof of, hasn't manifested itself in the world.