[Erasmus]

This illustrates the electrons interfering with each other — the hallmark of wave behaviour.

It's a little stranger than that. Even if you reduce the electron flux to the point that there is never more than one electron on the path from the source to the target at a time, you still get wave formation at the target in the case of multiple slits.

[aruanan]

It's a little stranger than that. Even if you reduce the electron flux to the point that there is never more than one electron on the path from the source to the target at a time, you still get wave formation at the target in the case of multiple slits.

See Explanation of Classical Electron Diffraction as to why you get something described as wave formation at the target in the case of multiple slits.