As I’m sure you’ve already heard, it’s a two-for-one celebration: the 200th anniversary of the day when both Abraham Lincoln and Charles Darwin were squeezed out of their mothers’ wombs and into this cold world. I live in a world of ideas, words and algorithms, and these two humans, more than most, demonstrated through their lives the power of the intangible on the material.  Hallelujah! Glory be to democracy and science!

Clicking on the following will get you to the xkcd store:

The Lincoln-Obama connection: