A Long Class

I was in Quantum Mechanics from 9 AM till 10:15 AM and I am so glad that this class only meets 2 times a week.  Not so long ago we thought space and time were the absolute and unchanging scaffolding of the universe.  Then along came Albert Einstein, who showed that different observers can disagree about the length of objects and the timing of events.  His theory of relativity unified space and time into a single entity called space-time.  It meant the way we thought about the fabric of reality would never be the same again.  The EPR paradox of 1935 is an influential thought experiment in quantum mechanics with which Albert Einstein and his colleagues Nathan Rosen and Boris Podolsky “EPR” claimed to demonstrate that the wave function does not provide a complete description of physical reality, and hence that the Copenhagen interpretation (a collection of views about the…