Documentary: How to Build a Time Machine

[Video Link] It's about smart people who are serious about building a time machine.

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  1. I already have one. It's my couch and it has never failed me move me steadily into the future.

  2. It also doubles as an anti-gravity machine -- keeping your butt levitated a couple feet above the ground.

  3. Ron Mallett, the physicist featured in that film, was the subject of a This American Life segment in 2007. If I remember right he spent many years studying the problem before concluding that a real-life time machine could at best only take you as far back as the point in time when it was turned on (like the device in Primer.)

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