>>16719318Yes. In more classical terms it is no different than the probability that all of the air in a given volume for a finite interval of time occupies exactly one half of the volume at 2 atm while the other is at a perfect vacuum. The probability is non-zero but it will not happen within the lifetime of countless universes if you choose a volume that isn't comically small and specifically chosen to defeat the point.
Also prove 'the electron' is 'the atoms electron'. In copper, which electron belongs to a specific atom. and how far is it allowed to go without an external field applied?