SCIENCE: As part of the Down to Science series, Thomas Goetz, Executive Editor of Wired, presents The Decision Tree: Gameshow Version!, in which participants will learn about "emerging tools to track and combine personal health data with a bounty of generic health information - all to help with those BIG decisions about our health." The event is based on Goetz's new book The Decision Tree.

7 to 9 p.m. // Atlas Cafe (3049 20th St) // free

MUSIC: Head over to Yoshi's to hear the epic Tinariwen, who are apparently impossible to categorize, and whose very long bio involves "rebellion, guns and guitars, desert nomads, Ghadaffi, the real Saharan blues."

8 and 10 p.m. // Yoshi's SF (1330 Fillmore) // $20-30