[danbmil99]

The paradox Schrodinger pinpoints in his famous thought experiment cannot be explained by a simple appeal to random variables. Such variables would be the "hidden variables" that Einstein and others attempted to find to explain Quantum entanglement.

Von Neumann thought he proved that hidden variables were impossible, but In the 1970's, John Bell introduced Bell's Inequality, and showed us that hidden variables can only be used to explain Quantum entanglement if one gives up on naive locality.

Things get hairier from there when you try to combine non-local theories (such as Bohm's) with relativity.

It's complicated.