what happenend?

If the big bang was this massive explosion, which due to cosmic
inflation, spread the universe, but my theory, is this: What starting
molecule or proton caused the big bang? Could it have been some atom
that split resulting in a massive explosion? If at first there was
nothing, then there was everything? How can so much matter come out of
nothing?
Also, if the big bang was so long ago, who was able at that time
period, to actually justify it happened? My theory is, there must've
been something that allowed the big bang to occur. It's common sense
that anything comes from SOMETHING! So what was it?

In article . com,
wrote:

If the big bang was this massive explosion, which due to cosmic
inflation, spread the universe, but my theory, is this: What starting
molecule or proton caused the big bang? Could it have been some atom
that split resulting in a massive explosion? If at first there was
nothing, then there was everything? How can so much matter come out of
nothing?
Also, if the big bang was so long ago, who was able at that time
period, to actually justify it happened? My theory is, there must've
been something that allowed the big bang to occur. It's common sense
that anything comes from SOMETHING! So what was it?


I suggest an initial reading of some basic cosmology books, such as by Brian
Greene, to divest yourself of some basic mistakes re the BB.

--

"Yes, you're right of course, NB. And they get very useless very quickly.
I shall do my best to ignore them, as you wish." Painius