Computers are so small and cheap these days that the phone in your pocket has more computing power than the biggest corporate computers of a few decades ago. A similar phenomenon is driving down the cost of solar electricity. Ramez Naam writes in ScientificAmerican, Smaller, cheaper, faster: Does Moore’s law apply to solar cells? Here’s a summary in one diagram:

Solar may not be the most affordable power source today, but wait a few years and it will be. Or get on with organizing the political and corporate structures to be ready. In sunny south Georgia, solar is our best bet.

-jsq