Watch John Preskill if you love Quantum Mechanics. Or Spacetime. Or Information.

Part deux https://www.youtube.com/watch?v=_i4Z5qARmqY

Slides http://www.theory.caltech.edu/~preskill/talks/QIP2017-tutori...

Talk is part of QIP 2017 (20th Annual Conference on Quantum Information Processing) http://stationq.microsoft.com/qip-2017-conference-schedule/