Ted Chiang explains everything to you! If you're in Washington State, you ought to make a beeline to the University of Puget Sound, where Ted Chiang will give a talk on "Technology and the Narrative of the Self" on Tuesday.
Physicist Richard Feynman was particularly famous for his lectures, which were known for being an engaging and accessible introduction to a number of scientific topics. Now Volume One of The Feynman Lectures is available in its entirety online.
If you're in the San Antonio, Texas area, you've got a chance to catch some lectures from a gang of futurists, critics, and science fiction writers during this spring's Reality Hackers series at Trinity University.