My thought experiment is this: The slit experiment showing photons are particles and waves leaves out a constant that is wrong. c in a vaccum is 187kph because vaccum is a medium. c is infinite in true nothing. Our sample time of an electron Thus gives probabilities not definates. The slit produces a pattern like water waves because the photon Is interacting with its medium. How am I incorrect in this basic assumption? I am aware it Destroys any equation so something is missing. why is c so Limited if it is not in a medium like water we call a vaccum?