Thank you for using Upcoming! To help focus our efforts on core Yahoo! product experiences, we will discontinue Upcoming by 30th April 2013. You can find more details here
"Ray Kurzweil, 'Kurzweil's Law,' 7pm (doors open), Friday, September 23, Herbst Theater (at San Francisco Civic Center). The lecture starts promptly at 7:30pm. Admission is free ($10 donation very welcome, not required). Kurzweil will sign books after the talk.