MUSIC: Capsula, from Spain, bring their mix of "straight-up scuzzy garage punk and like Death Valley 69-era Sonic Youth" sound to the Elbo Room. SF's Blammos and The Angel & Robot Show (a lounge act by members of The Phenomenauts) will also perform.

9 p.m. // Elbo Room (647 Valencia St) // $6

LITERARY: Web guru Steven Johnson will talk about his new book, Where Good Ideas Come From: The Natural History of Innovation, which shares his research surrounding the type of environment that fosters remarkable innovation. The book bridges "natural science, intellectual history, urban sociology, and cutting-edge technology" and offers "answers that readers can use to propel their lives and careers forward."

7:30 p.m. // The Booksmith (1644 Haight St) // free

SYMPOSIUM: At Territory: Architecture Beyond Environment, a panel of experts will discuss ideas and provocations generated from the recent issue of Architectural Design, which examines the possibility of an architecture that both responds to, and actively produces, its external ecological conditions.

7 to 9 p.m. // CCA San Francisco Campus, Timkin Hall (1111 8th St) // free