1) Why is there something rather than nothing? (or) Why does the
universe bother to exist? (or) Why is it necessary for our universe to
exist, and to continue to exist?
All this got me thinking. First let me say that because the mind can create a question object in the mind does not mean it is a real or meaningful question. That is not to say anything against the mind, but if the mind can conceive a god, and no god, it can also conceive of other thing that just are not real.
First, if there was nothing, there would just be empty cold space, aka nothing. Why should there be a bound on nothing? What else would nothing look like?
Before the big bang, what ever was there had higher entropy than matter that existed. Disorder increases. If it was a singularity, what ever that was, is now gone, converted into matter and energy. If it was not a "singularity" then it could be something like a massive black hole exploding, and we only see the effect of the last one. Some questions we can not yet answer yet. It need nothing have anything to do with we humans. It is a human desire to have an answer. All most all cultures have a creation hypothesis story. We want answers, but some questions are beyond our understanding yet.
Chemical and physical process do not need a purpose, they continue until conditions are not suitable. end of. We humans try to place propose on things where there is none. This is something like our desire to learn and/or understand. Man has no purpose beyond to reproduce, unless we impose one onto it. We should be trying to keep our environment in such a condition that we can live, but there is not enough cooperation to see the obvious. There is religion because people will not see the obvious. Oh well. enough.
Concepts like purpose are just concepts, and as such exist as concepts. Our mind can handle them as abstract nouns, concepts, yet they may have no physical reality. Things happen because of a driving force exists, nothing more. Man is just a opportunistic minimal living on a big rock whirling through space. It has enough gravity to attract an atmosphere, and enough heat for organic material to produce oxygen that we breath. We need to keep the carbon dioxide consuming plants healthy so that we may continue to live. We live in a closed system, and our population has become large enough that we are effecting our environment. Shit happens.