What prevents scientists from being able model what was before the Big Bang?

Question

What prevents scientists from being able model what was before the Big Bang?

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Answer 1

Let’s imagine a few things. Say you’re floating in space. I, an omnipotent being, said “screw it, I’m making all matter and energy in the universe except for you disappear.”

So now you’re floating around in nothing; no stars, no planets, no light, nothing. But not quite. There’s still something. There’s still the Space-Time fabric. Space and Time are physical objects in our universe. Even darkness itself is still something.

Before the big bang, that didn’t exist. There was literally no space or time. What’s there before Time itself? True nothingness. Some will say the universe was a point before the big bang but that’s not really the case. To say “before the big bang”, there needs to be Time before the Big Bang. But there was no Time, so there’s absolute nothingness. Humans and computers have a hard time grasping the concept of absolute nothingness.