Quantum physics is weird as hell, but this entanglement experiment using stars is simply beautiful.
Cosmic Bell Test: Measurement Settings from Milky Way Stars - http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.060401
The original article from Quanta which prompted this episode - https://www.quantamagazine.org/20170207-bell-test-quantum-loophole/
“On the Einstein Podolsky Rosen Paradox” by J.S. Bell, 1964, which demonstrates mathematically that the switching-discrete-values thing gives different results than the superposition thing - https://cds.cern.ch/record/111654/files/vol1p195-200_001.pdf
Feynman’s Messenger Lecture on probability and uncertainty - https://www.youtube.com/watch?v=x5RQ3QF9GGI
Feynman’s Sir Douglas Robb lecture on quantum electrodynamics - https://www.youtube.com/watch?v=eLQ2atfqk2candlist=PL8590A6E18255B3F4 (I promise the audio gets better about a quarter of the way thru.)
Sixty Symbols on quantum superposition - https://www.youtube.com/watch?v=KRRnMS1sm6Yandt=8s