Hysteresis is the term for processes that behave differently in one direction than in another. Understanding it is critical for flying, for dampened suspension systems, and for being aero on your bike. Yep, in this episode we'll be making liberal use of analogies that include a Tempurpedic mattress, a rolling tire,  mountain bike suspension and a fair number of Hitchhiker's Guide and Top Gun references. Enjoy this episode of Marginal Gains!