[Lurker]

It’s real if gravitational lensing is real.

Then why isn't it all over my carpet?

Why aren't we being crushed by tons of the stuff?

L

[RightWhale]

why isn't it all over my carpet?

It is. It is what your cat sees and you can't.

[spunkets]

"Why aren't we being crushed by tons of the stuff?"

They're called WIMPS-weakly interacting particles. The sun puts out tons of neutrinos and they go right through you. So do axions. They only have an effect on the large scale by their combined gravitational field, like in spiral galaxies and other large scale dynamics. On small scales, they are WIMPS.