Why does the Universe exist?

Go and boil your bottoms, sons of a silly person! I blow my nose at you, so-called George Keeng

The question Why does the Universe exist? Can only be answered with theory, not a certainty. English astronomer Fred Hoyle is credited with coming up with the term "Big Bang" and said, ”These theories were based on the hypothesis that all the matter in the universe was created in one big bang at a particular time in the remote past,”(Fred Hoyle). The Big Bang Theory is the best theory to explain the start and evolution of the Universe, it is the only one that does not make incorrect predictions. If this question was asked to someone who is religious they would add their beliefs into their answer, for example, a Christian would say God created the universe to start life. Our existence is improbable, much like the probability of this particular universe being created.

The best answer for why does the universe exist is what scientists have opined, and why all other universes exist. The universe exists, because "we" exist.

All Hail the mighty and Omnipotent Scientists! Cast scorn on all doubters!

There is no reason that the universe exists. It simply "is." Reason is a construct of life and only applies where the life is concerned.

Without the “we” what difference does it make?

And the ominipitent scientists are the ones that decide what is and isn't included as an acceptable philosophical view point.

is an oxymoron. None never claimed such.

At least the scientists can spell, they can also transcribe if spelling's too much.

Most scientists don't understand philosophy, although of course they unconsciously do a lot of it. I wonder why you would assume that they control the philosophical discourse... That seems so absurd. Scientists can't even get their own message across: everybody hates them so much whenever they say something unpopular, like on climate change. Your fantasy that the scientists rule the world is totally ridiculous. Rich folks like Trump or Putin rule this world.

I was gonna ask you that. Not much reason for universe to exist otherwise.
No reason at all.

Nobody can control the philosophical discourse, because philosophers do not agree on many aspects of what life is all about. How does one reconcile the many political and religious' philosophies that are extent? Most religious beliefs are based on "faith." Why are there so many different political philosophies? Who determines which "ones" are the best? No easy answer.

I am not disagreeing that climate change is happening. But who are we to decide what the perfect climate is. The era that had the most diverse biological organisms was 10 to 14 degrees warmer than now. By that criteria global warming is good. (if you don't live by the ocean anyway).

But as for why the universe exists. The natural world contains a lot of information embedded in the systems (and we as humans are one of those systems) we view as the natural world. We come to understand the information in these systems as we live our lives and perform scientific research by turning the information into knowledge through the philosophical interpretation of the knowledge we acquired. Scientists have a lot to say about how that knowledge is interpreted which we then use to determine the purpose of that system and how we will manage it. Considering science does not consider the author of the information's plan revealed by the system, gives me pause. The fact that the average person considers there is an author with a plan is probably one reason there expertise is considered suspect by the general population.

. Really?

Scientists are not good at philosophy, period. They're good at science, if they're worth anything. Depending on scientists for your philosophical thinking is like asking a catholic priest about sex with women.

There's no such thing as a perfect climate. But there is a type of climate that can kill us and our kids, the type we're heading towards.

Granted that in the grand scheme of thing, the extinction of Homo sapiens could be good for biodiversity.

Umm... The same way - use your ability to reason and then choose.

You seem to have done OK on making a political choice (among many possibilities).
But then when it comes to 'Why does the Universe exist', you throw up your hands and say 'Too many choices, they must all be wrong.", so you are left with no reason at all.

. However, the very species that has the wherewithal to harm or help this crazy planet are humans. Without homo sapiens, what difference does it make?

What about the other critters? They don’t matter?

They matter, but without humans on this planet, those "other critters" won't understand what's happening. Humans cause the most good and bad effects to this planet, and "we" understand the consequences. We understand nature more than those "other critters." https://www.livescience.com/27553-mount-st-helens-eruption.html

I’m not so sure that other species don’t think.