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. Many have avoided it as an impenetrable mystery. Others have tried to define it away. Most have got themselves into an awful tangle just thinking about it. The problem, at rock bottom, is this: If nothing happens without a cause, then something must have caused the universe to appear. But then we are faced with the inevitable question of what caused that something. And so on in an infinite regress. Some people simply proclaim that God created the universe, but people always want to know who created God, and that line of questioning gets uncomfortably difficult.
One evasive tactic is to claim that the universe didn't have a beginning, that it has existed for all eternity. Unfortunately, there are many scientific reasons why this obvious idea is unsound. For starters, given an infinite amount of time, anything that can happen will already have happened, for if a physical process is likely to occur with a certain nonzero probability-however small-then given an infinite amount of time the process must occur, with probability one. By now, the universe should have reached some sort of final state in which all possible physical processes have run their course. Furthermore, you don't explain the existence of the universe by asserting that it has always existed. That is rather like saying that nobody wrote the Bible: it was. just copied from earlier versions. Quite apart from all this, there is very good evidence that the universe did come into existence in a big bang, about fifteen billion years ago. The effects of that primeval explosion are clearly detectable today-in the fact that the universe is still expanding, and is filled with an afterglow of radiant heat.
It is at this point unknown what was around before the big bang. Indeed due to the nature of the big bang we may never know.
It is important to note however, that the question itself may be inherently flawed. General relativity tells us that time and space are the same and that they are merely two separate aspects of a single entity, the fabric of space-time. Since the big bang was the origin of space, then it would also be the origin of time. As difficult as this is to grasp, there may not have been a "before" the big bang.
So asking what happened before the big bang is like asking what is north of the north pole.
Originally posted by octotom
reply to post by seangkt
I've always heard that the thought is that everything was condensed to a point no larger than a pin prick. So, that is what existed before the Big Bang. The universe then would have always just been and at one point popped like a corn kernel and kept on moving.
I'm not aware of any other theory other than that.
Originally posted by seangkt
Are there any theories as to what was around before the Big Bang happened?
I am currently all for it but the more I think about it, it begins to make me think it is a very well thought out and brilliant theory but just kind of dumb too. I don't have much experience in the field, so don't bash me for asking or if I am wrong about anything. I just recently became interested in physics about a year ago and am currently planning on majoring in it.
From what I've been told two atoms just collided and BAM! the universe is born.
What was here before those two atoms?
Were they just floating around in nothing?
Were they the only 2?
If there were more atoms just floating around does that mean that something else was here before this universe, as in atoms making up matter, making up planets, stars and whatever else.
I almost feel like people should just leave the subject alone and just consider it as unanswerable as what really happens when we die.