What prevents scientists from being able model what was before the Big Bang?
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The “Big Bang” is a theory that describes how the universe formed. We get to that theory by using math to work backwards from modern-day observations, like working out where a ball was thrown from by seeing it’s current speed and direction to calculate the arc it’s following.
That math tells us that time and space started from a massive expansion from a very squished state… It’s the time and space part being created that makes it difficult to say what existed before the big bang. Without time existing, what does “before” mean? Without space, what does “where” mean? We can work out what happened up to the point of the event, but the math simply doesn’t work past the beginning. The equations get negative and “imaginary” numbers that don’t make any physical sense. From our perspective, “before” simply doesn’t exist in any meaningful way.
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