this is vaguely related to the string theory related post from a day or two ago, it’s all bazinga science folks TL;DW string theory is a big thing because people that read pop science really liked it and it took a long time for physicists to come out in force and say “this is untestable garbage”
The whole pop-culture “multiverse” trope is also not taking into account the fact that only quantum particles are able to exist in an uncollapsed state. The thing that collapses a wave function isn’t magical observation, it’s a concentration of quantum particles interacting with each other.
A human sized collection of particles is incredibly stable because of the “inertia” of those particles interacting with one another. The Schrodinger paradox wasn’t meant to be some big revelation about the nature of quantum systems, but a joke about how we don’t really understand yet what it is that causes the collapse of the wave function and viewing quantum events outside the context of the local systems they occur in is bound to lead to paradoxical conclusions.
But we get multiverse pop-culture stuff because it’s an easy cop out for writers.
