Everything Won't Become Free at Once

Maybe the coolest technology could get very good and cheap, while at the same time crucial fundamentals for survival could become expensive. The calculi of digital utopias and man-made disasters don’t contradict each other. They can coexist. This is the heading of the darkest and funniest science fiction, such as the work of Philip K. Dick. Basics like water and food could soar in cost even as intensely sophisticated gadgets, like automated nanorobotic heart surgeons, float about as dust i...

 Evolution is Personal

Among the wonders that science has uncovered about the universe in which we dwell, no subject has caused more fascination and fury than evolution. That is probably because no majestic galaxy or fleeting neutrino has implications that are as personal. Learning about evolution can transform us in a deep way. It shows us our place in the whole splendid and extraordinary panoply of life. It unites us with every living thing on the Earth today and with myriads of creatures long dead. Evolution giv...

 The Tides of Ancient Times Were Awesome Events

In the days when the earth was young, the coming in of the tide must have been a stupendous event. If the moon was, as we have supposed in an earlier chapter, formed in the tearing away of a part of the outer crust of the earth, it must have remained for a time very close to its parent. Its present position is the consequence of being pushed farther and farther away from the earth for some 2 billion years. When it was half its present distance from the earth, its power over the ocean tides wa...