Return of the Ether: Conjecture That Can Explain Photon and Electron   Two-Slit Interference
  The ether can "explain" certain questionable "quantum realities" in which single, isolated photons form a diffraction pattern in a two-slit apparatus; and, similarly, single, isolated electrons form a diffraction pattern in the equivalent of a two-slit apparatus.   The notion that every large object, such as the earth, carries its own ether, is not considered. 
Sid Deutsch