What's an empty Camember lid and a glass marble got to do with anything?

Well, if you 'honey, I shrunk the kids!' the above to the nano/femto level, that weirdness of weirdness known as quantum mechanics starts to rule how matter behaves.

Below is the so-called probability density distribution of (one of the) quantum states of the marble. Peaks are areas of high probability density.

Much more and much better in a post I'm working on...