Time travel is a science fiction staple, inspiring the plots of countless books, movies, and Star Trek episodes. But while basic physics allows for the possibility of moving through time, practical concerns like the “Grandfather Paradox” (in which a traveler jumps back in time, kills his grandfather, and therefore prevents his own existence) seem to stand in the way.

In a July 16 SFI Community Lecture in Santa Fe, MITs Seth Lloyd proffered a mode of time travel that eliminates any events that could later prove paradoxical, making this phenomenon both theoretically possible and creatively irresistible, whether you’re an astrophysicist, a science fiction writer, or a daydreamer.

Watch Seth Lloyd's lecture (84 minutes, July 16, 2014)

Hear an interview with Lloyd on the Santa Fe Radio Cafe (22 minutes, July 16, 2014)

Read the article in the Santa Fe New Mexican (July 15, 2014)

SFI Community Lectures are broadcast live online. To watch a lecture as it happens, visit SFI's YouTube page. You can participate in the live Twitter discussion at #sfi_live or @sfi_live.

SFI’s 2014 Community Lectures are made possible through the generous support of Thornburg Investment Management.

For a complete listing of upcoming SFI community events, please check here.