Some Scientists Fear Computer Chips Will Soon Hit a Wall - NYTimes.com

John Markoff

"Now, however, researchers fear that this extraordinary acceleration is about to meet its limits. The problem is not that they cannot squeeze more transistors onto the chips — they surely can — but instead, like a city that cannot provide electricity for its entire streetlight system, that all those transistors could require too much power to run economically. They could overheat, too."