MIT TechTV - Videos tagged with derek tag:techtv.mit.edu,:Array/233539060 Derek Greenfield 2008-06-27 12:24:46 -0400 msrp2008 Inspirational lecture delivered on June 24, 2008. 6540 tag:techtv.mit.edu,:Array/233513320 Derek Greenfield Part 1 2007-07-03 14:54:12 -0400 msrp2007 July 2, 2007 3780 tag:techtv.mit.edu,:Array/233487780 Derek Greenfield Part 2 2007-07-03 14:52:02 -0400 msrp2007 July 2, 2007 3515 tag:techtv.mit.edu,:Array/233465920 Derek Greenfield 2009-07-02 13:52:53 -0400 MSRP 2009 Recorded 6/30/2009. 8133