Daily Archives: February 5, 2008

Robin Chase: Getting cars off the road and data into the skies

Robin Chase rose to fame by founding Zipcar, the world’s biggest car-sharing business, but that was one of her smaller ideas. In this presentation she travels much farther, contemplating road-pricing schemes that will shake up our driving habits and a no-fee mesh network as sprawling as the United States Interstate highway system. But how could you build a free wireless system that vast and pervasive? Chase finds the answer in a few short lines from The Graduate. And it has nothing to do with plastic.

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The Three Necessary and Sufficient Conditions of Natural Selection

Natural Selection is the key creative force in evolution. Natural selection, together with specific histories of populations (species) and adaptations, is responsible for the design of organisms. Most people have some idea of what Natural Selection is. However, it is easy to make conceptual errors when thinking about this important force of nature. One way to improve how we think about a concept like this is to carefully exam its formal definition. Continue reading The Three Necessary and Sufficient Conditions of Natural Selection

I’ve decided whom to vote for

This has been a difficult decision. Clinton or Obama, either one, is a good candidate and would make a good president. McCain will be the Republican nominee. Clinton has been leading in the polls all along, but Obama is surging. In the last few days I’ve spoken to a dozen people who each know four or five people who will vote for McCain against Clinton, Clinton against Romney, Obama against either Romney or McCain. Continue reading I’ve decided whom to vote for