[PatrickHenry]

In the absence of a definite interaction, the electron is like a little wave. It can go down two tunnels at once as a wavefront and make interference patterns with itself coming out both tunnel ends. Or, you can detect which way the electron goes, and the interference patterns vanish.

I've never liked QM. I haven't studied enough to denounce it, and I suppose that would be wildly foolish, given all the experimental evidence. But I just don't like it. So I ignore it. I am grateful that QM also ignores me. Sort of a stand-off.

[VadeRetro]

I've never liked QM.

It's so counter-intuitive as to be appalling. When I first heard about the "particle" going both ways as a wave unless you "measured," it actually upset me. But that's really how the little buggers act.

I like it now for the jaw-dropping moments of disbelief it induces. (Well, I like reading dumbed-down articles about it.) In a way, it's too bad the macro world doesn't behave like that.