Seems like it changes reality. The presence of a measurement changes the interference pattern for all observers, no? If the waveform collapse only happened in

Seems like it changes reality. The presence of a measurement changes the interference pattern for all observers, no? If the waveform collapse only happened in my reality then if I observed a field, I would expect others to see an interference pattern, even if I only saw a clear field. If other people can observe an interference pattern while I observe a clear field, then that's a multiverse. That means you need a whole new universe for every observation. Seems like poor compression. Although I guess if it's an append-only store then it works out ok.