Why the Trip Back Always Feels Shorter

We’ve all felt it before: for whatever reason, the trip coming home seemed a lot quicker than the trip going there. This isn’t just you losing your already tenuous grip on reality; on the contrary, several studies have confirmed the existence of what researchers call the “return trip effect.” Even when travel distance and time are the same there and back, the back feels measurably shorter.

Exactly why this effect occurs is a source of ongoing inquiry. Eryn Brown at the L.A. Times reports on a new study in PLOS One offering one potential explanation: it’s not that we’re bad at judging how long a trip is taking, it’s that we’re bad at remembering how long it took. That’s what the researchers found when asking study participants to watch a video of a round-trip then asking them to judge its length in real-time and retrospectively.