Every week Leo talks to the smartest people in the world about the most important topics in technology.

Records live every Monday at 11:00am PT/2:00pm ET.

September 18, 2013
#120: Ariel Waldman

Ariel Waldman is the founder of, and the global instigator of Science Hack Day.

September 11, 2013
#119: of Dice and men

David M. Ewalt is journalist and author of Of Dice and Men, a book about Dungeons and Dragons.

September 4, 2013
#118: Tim Jenison

Tim Jenison is the founder of NewTek and the subject of the new documentary, "Tim's Vermeer".

August 28, 2013
#117: Mignon Fogarty, Grammar Girl

Mignon Fogarty is the creator of Grammar Girl and the founder and managing director of Quick and Dirty Tips.

August 21, 2013
#116: Philip Rosedale

Philip Rosedale is an entrepreneur and creator of the 3D virtual world Second Life.

August 14, 2013
#115: Esther Dyson

Esther Dyson is an angel investor, philanthropist, and commentator focused on healthcare, biotechnology, and space.

August 7, 2013
#114: Stewart Cheifet

Stewart Cheifet, host and producer of Computer Chronicles and Net Cafe, is this week's guest.