The future of electronics:
As chips are progressively able to perform more calculations for less money, and in a package that's continually shrinking, Kurzweil told the Game Developers Conference audience to look for the price-to-performance ratio of computers to improve a billionfold in the next 25 years.
My italics.
This article available online at:
http://www.theatlantic.com/daily-dish/archive/2008/02/a-billionfold/219653/
