There is a quantum phenomenon which seems to run counter to common sense, or else that tells us that common sense is not really the way the world works. The reality of this phenomenon has been established experimentally, notably by the French team of Alain Aspect, in 1983.
One experiment demonstrating quantum non-locality involves atoms of calcium that are put into an unstable energy state so that they emit a pair of identical photons traveling in opposite directions at the speed of light.
Since they are both moving apart at the speed of light, their velocities add, so they are actually separating at twice the speed of light. Modern technology allows us to track the behavior of these two photons as they move apart.
The behavior seems very strange. As one of the photons passes through a polarizer that changes a property called spin, the spin of the other photon changes also.The first photon appears to send its twin a message describing what happened to it, no matter how far away they are from each other or how fast they are separating.
Since relativity theory does not allow for any kind of message that is faster than the speed of light, one can only conclude that there are some means of instantaneous communication between the two photons that were once together in the original calcium atom.
EINSTEIN`S SPOOKY DESCRIPTION
Since all matter in the universe was once gathered together in one place, before the big bang, all matter in the universe continues to be in relation to all other matter.
-James L. Oschman, Ph.D
If you go to 1 hour and 5 minutes in, Gregg talks about the science experiment mentioned earlier.