Posted: Apr 30, 2016 3:01 pm
The Quantum Cards thought experiment. At 10 00 am you balance a card on its edge bet S100 on it falling face up and you
close your eyes. Ten seconds later the card has fallen down both to the left and the right in quantum superposition so the wavefunction describes the card being in two places at once. Another ten seconds later you have opened your eyes and
looked at the card so the wavefunction describes your being happy and sad at once. Although there is still only one wave function and one quantum reality ( within which particles making up both the card and you are in two places at once )
Everett realized that this is in practice as if our Universe has split into two parallel universes with a definitive outcome
in each of them
Page 188 / Our Mathematical Universe My Quest For The Ultimate Nature Of Reality / Max Tegmark