Will Wright: Toys that make worlds

In a friendly, high-speed presentation, Will Wright demos his newest game, Spore, which promises to dazzle users even more than his previous masterpieces.
Here Wright encourages users to create not households, as in The Sims, or cities, as in SimCity, but the entire universe, from single-celled life forms to galactic physics.
http://www.ted.com/talks/view/id/146