Carl Sagan fans will love this brilliant mashup of The Matrix with a speech on the nature of matter from Cosmos. Now I know why I liked Hugo Weaving as Agent Smith so much: it was a Sagan homage. [via jwz]
I really enjoyed Dr. Horrible’s Sing-Along Blog, Joss Whedon’s super-villain musical starring Neil Patrick Harris. Penny Arcade points out that it all goes away tomorrow ahead of the DVD release, so make sure you watch it now.
David Allen visited Google to present Getting Things Done and YouTube has the video. [via Simply GTD]
The Lyrebird mimics the sounds it hears with incredible accuracy: other birds, camera shutters, car alarms, chainsaws.