Donal wrote:



Does an electron exist? Is it a physical entity?

Yes


If so, then it must occupy a position in space!

Not unless you look for it, until then it is everywhere, if
you subscribe to quantum mechanical theory.


Therefore, it will occupy an infinite number of positions in the next
second - because the next second contains an infinite number of points in
time.

Like I said, it always was and is everywhere, it's one way of explaining
quantum tunneling.

Cheers
Marty