Wave function collapse
Basically all of existence, every multiple universe, is true and present until we settle on the one we are in by, well, observing it. Schrodinger’s cat is the most famous thought experiment of this concept.
Basically all of existence, every multiple universe, is true and present until we settle on the one we are in by, well, observing it. Schrodinger’s cat is the most famous thought experiment of this concept.