Well, it's taken time to get this going, but he was right. If you give people a chance to associate themselves with a cause they care about, while buying a great product, they will. That was how the RED Campaign was born, here in Davos.

If you have 50 different plug types, appliances wouldn't be available and would be very expensive. But once an electric outlet becomes standardized, many companies can design appliances, and competition ensues, creating variety and better prices for consumers.

People are using Windows PCs more than they watch TV now.

I watched the piles of feces go up the conveyor belt... They made their way through the machine... A few minutes later I took a long taste of the end result: a glass of delicious drinking water.

Who decides what's in Windows? The customers who buy it.

The part of uranium that's fissile - when you hit it with a neutron, it splits in two - is about 0.7%. The reactors we have today are burning that 0.7%.

Robots will play an important role in providing physical assistance and even companionship for the elderly.