Lambda the Ultimate

http://www.infoq.com/presentations/Simple-Made-Easy

Great presentation by Rich Hickey, of Clojure fame. Summary from the video page:

"Rich Hickey emphasizes simplicity’s virtues over easiness’, showing that while many choose easiness they may end up with complexity, and the better way is to choose easiness along the simplicity path. "

Very interesting discussion on reddit with comments from LtU regulars as well as Rich himself:
http://www.reddit.com/r/programming/comments/lirke/simple_made_easy_by_rich_hickey_video/