Wave or Particle? How Light Outgrew Both

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Albert EinsteinHistorical profile​·​#5835​·​1997​·​AI-assisted
4th of 4 versions​·​revised by David DeutschHistorical profile

Reality is a multiverse, as Everett’s theory says, and single-particle interference shows it. Photons sent through slits one at a time stop reaching some places when more slits are open, so something coming through the other slits interferes with them: shadow photons, which are the photons of other universes. Every kind of particle has such counterparts, and they make up a huge number of universes like ours.

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