Some interesting popular science-ish lectures on physics
Leonard Susskind on The World As Hologram
http://www.youtube.com/watch?v=2DIl3Hfh9tYHow information conservation and the Bekenstein bound, that limits the maximum amount of information that can be contained within a finite part of space, might imply that our world is a hologram on the edge of a black hole.
Why is Time a One-Way Street?
http://www.youtube.com/watch?v=jhnKBKZvb_UHere about how the laws of physics are time symmetric, except for the statistical laws of thermodynamics. Poincaré recurrences, cyclical time and the Boltzmann brain.