Seems solid enough

Exactly.

PhilPub wrote (see)

"If you imagine a nucleus scaled up to the size of a tennis ball, then the tiny electron would be smaller than a mote of dust orbiting at a distance of a kilometre."

It takes up a bit more space than that mote of dust though.

There isn't ANYWHERE on its one kilometre radius sphere of orbit that you can point to and say "the electron isn't there, that bit there is empty space"

It's got the whole damn thing covered

Okay then - go break out the Schrodinger..... haven't seen any bra's or ket's for a while.

(shudder at the very thought)

All of a sudden we see that 0.0000000000001% of everything is actually nothing.

Shouldn't that be the other way round? Only 0.0000000000001% of everything is something.

Anyway, could it be less than that?  There might only be one electron in the universe.