The double slit experiment shows light particles are a wave that assemble in your presence. And you didn't even have to say a word!
Fineman, Einstein, and Schrodinger walked into a bar.
Fineman says, "It appears we're inside a joke."
Einstein says, "But only to an observer who saw us walk in simultaneously."
To which Schrodinger says, "If someone's looking through the window, I'm leaving!"
Stephen Hawkings best subjects were Physics and Maths. His worst was P.E.