What if it is all that? So what?
Strict physical materialism is a hard sell, and I'm surprised atheists keep trying to sell it.
The rules of logic, aesthetic beauty, mathematical theorems, the mathematical constants of nature exist and transcend beyond the motion of subatomic particles. So I've yet to meet an atheist who has given me a convincing argument that nothing at all exists but matter and energy.
You can still live like you have free will. You can still enjoy a "sunset".
I do. In fact I'm willing to bet I spend more time with art than even you do!
And I don't believe in the supernatural. Weird isn't it?
I'm not talking about casually and passively enjoying aesthetic beauty. If nothing exists but matter and energy, then beauty is ultimately meaningless.
But beauty seems to have a transcendent quality that goes beyond electrons and quarks. The deeper you think about beauty, the more you realize there is an underlying mathematical harmony to it. Aesthetic beauty is often defined by the properties of symmetry, geometry, proportion, the golden ratio, Fibonacci sequence, mathematical rules of perspective, the Roche limit, fractals, the mathematical harmony of the heavens, etc.
Edit to add: that transcends trying to explain everything with quarks and photons.