Dear Blue,
If you mean something like, “by what processes did these things happen?” there are already answers of various stages of completeness.
Seems to me that you are changing the "why" into a "what" and I do know that it is perfectly acceptable to say, I dunno, but this is why I ask the question "why".
Question like, why do we, humans understand how the Universe works ( in our very limited capacity ) Profdavey talks about fundamental laws, without these laws, we would not be here to talk about fundamental laws.
Everytime I look at the science behind how we got to where we are today I do a Prof Cox and think, it is a miracle we are even here, revisiting Prof Hawkings book "A Brief History of Time" even he asks the question, "why" did the universe start out with so nearly the critical rate of expansion......................if the rate of expansion one second after the big bang had been smaller by even one part in a hundred thousand million million, ( a big F*** me number ) the Universe would have recollapsed before it ever reached its present size.
The amount of stuff that had to happen just for life is staggering, never mind the fact that we have intelligent life, and when you start to think of intelligent life ( not just us ) that for me points to, hell!! outside influence, God, purpose, God is in the equation ( what ever God is ) somewhere.
Gonnagle.