Pretty good Mimsey - better'n anything I've been able to come up with. Oh, I have a spanking new computer now that eats videos for breakfast, so no worries there. I don't think I've got anything to gain from watching another video on the double slit experiment. Whatever understanding of it I have I've had for twenty years now, and to improve on it I'd have to understand the maths. Why bother with ESP and things that go bump in the night Mimsey? Quantum physics is weird enough as it is.