Alan Kay or DHH?
lsb: It's from Alan Kay, in 1971.  Don't worry about what anybody else is going to do.
  The best way to predict the future is to invent it.

"The origin of the quote came from an early meeting in 1971 of PARC, Palo Alto Research Center, folks and the Xerox planners. In a fit of passion I uttered the quote!".
— Alan Kay, in an email on Sept 17, 1998 to Peter W. Lounthttp://www.smalltalk.org/alankay.html