Steven Pinker is awesome,my favored writer (besides marty beckerman).
The topics and speakers range from:
-end of the world
-universe as a whole and odd things
-the perception of happyness
-marketing
-language
-key shifts in new technologies
-poverty and the changes int he world
-the myth of violence
and these are all interesting
http://www.lifehack.org/articles/miscellaneous/the-ten-videos-to-change-how-you-view-the-world.html good videos,my kinda jazz.
http://www.ted.com/ watch these and i will probably love you more.