What's Hot and Why Not?

Wouldn't it be great if we could predict the future? We could invest wisely, prepare for social change, and have next season's fashionable footwear.

But in our accelerated world, it seems increasingly difficult to figure out what the next big thing will be. In this hour, are trends a window on the future?

You can also hear the full "back to the future" discussion, and the uncut interview with Butch Vig.