To a physicist, we have the 'I' word, the I-word is 'impossible.' That's dangerous.

Cesium, iodine from the Chernobyl reactor accident went around the world many times and everyone on the Earth has a piece of Chernobyl in their bodies, but it's very tiny - too small to cause much damage.

It is often stated that of all the theories proposed in this century, the silliest is quantum theory. In fact, some say that the only thing that quantum theory has going for it is that it is unquestionably correct.

Computer chips will cost about a penny. That's the cost of scrap paper. The Internet will be basically for free and it will be inside our contact lens. When we blink, we will go online. When we see somebody that we don't recognize, our contact lens will identify who they are, print out their biography in your contact lens and translate, if they're speaking Chinese, into English with subtitles as they speak.

We are slowly isolating the genes involved with the aging process. We do not have the fountain of youth, but I think, in the coming decades, we will unravel the aging process at the genetic level.

We've done a miserable job of preparing people for today's world, let alone tomorrow's.

They basically ask their engineers to volunteer some probability figures, then they take the average. This is not science. This is voodoo.