# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2010-09-06 16:20:10 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/23158310405) Listening to Parallel Worlds by Michio Kaku on Audiobook. Part history of Quantum Theory and part layman explanation. Love it!