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Our universe shouldn’t exist? But does?

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This image represents the evolution of the Universe, starting with the Big Bang. The red arrow marks the flow of time.
Big Bang/NASA

From Bernie Hobb at ABC:

The Standard Model of particle physics — which accurately describes all the particles and interactions that make up our universe — says our universe shouldn’t exist.

Or at least, the matter that makes up all the stuff in existence shouldn’t be here. It should have been wiped out by the matching antimatter that was created with it in the first second after the Big Bang.

And unless we’re all part of some universe-wide delusion, that’s clearly not right.

Why must it be a delusion? Why can it not be design?

Something led to a tiny imbalance in the matter/antimatter numbers at the beginning of time, with matter slightly in the lead. That imbalance — called the matter/antimatter asymmetry — gave us the leftover matter that forms everything in the universe, from galaxies and hydrogen clouds to you and slime moulds.

Finding the cause of the imbalance means finding a brand new bit of physics — like a new particle or force — and it’s one of the more exciting and challenging jobs in particle physics right now.More.

Question: Why does “science” mean looking for ways this stuff somehow just happened? How did we decide this was the way to go about it?

See also: Laws of nature are uniquely fine-tuned

and

Copernicus, you are not going to believe who is using your name. Or how.

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