Yes, but this is not evidence for the existence of those things.
I didn’t say it was.
But it’s not conclusive in every case, because the simplest adequate explanation need not be a physical explanation.
There is one notion of simplicity where it is conclusive in every case: every explanation has to include physics, and then we can just cut out the extra stuff from the explanation to get one that postulates strictly less things and has equally good predictions.
Why posit that an explanation has to include physics even in cases, like this, where it adds nothing? In those cases it’s simpler not to include physics.
I didn’t say it was.
Why posit that an explanation has to include physics even in cases, like this, where it adds nothing? In those cases it’s simpler not to include physics.