Release Message:  Josh (pictured) and Chuck use a company-wide time capsule initiative to settle a bet on time travel, getting physicist Michio Kaku tangled in a time travel scheme.

Description:  At HowStuffWorks, Josh and Chuck use a company-wide time capsule initiative to settle an old bet on time travel, getting physicist Michio Kaku tangled in the scheme During the podcast the guys cover time paradoxes and causal loops.