Closing a Few Open Tabs

Closing a few open tabs.

* The New York Times has an article on Fermi problems and the importance of intuition in mathematics. (There's a game.) (Via Boing Boing.) Kottke links to some such calculations at 3quarksdaily, saying they used to be part of the interview process of Microsoft and Google.

* Roger Ebert explains why some people say he gives movies too many stars.

* The new season of the Ricky Gervais podcast is out.

* More radio: an episode of This American Life from May that explains the origins of the mortgage crisis.

* And Bill Gates is investing heavily in algae fuel. We're saved!