Einstein was wrong: MIT just settled a 100-year quantum debate

MIT physicists resolved a long-standing quantum debate between Einstein and Bohr using an idealized double-slit experiment with atoms as slits and single photons. They proved that light's particle and wave nature cannot be observed simultaneously, supporting Bohr's quantum theory. By adjusting atoms' positional certainty, researchers controlled light's behavior as particles or waves. The experiment, using thousands of super-cooled atoms in a lattice, demonstrated that when an atom detects a photon's path, the wave interference pattern weakens.