Why Is My Brain's GPS So Bad?Your internal compass is fundamentally broken.

From the show

Oh, god... really?

Without a visual cue like the sun or a landmark, your brain's sense of direction is surprisingly unreliable. Tiny, accumulating errors in your perception of "straight ahead" will consistently cause you to walk in circles. You'll do this while being completely convinced you are moving in a straight line. This phenomenon reveals the fallibility of our internal senses and our deep reliance on external anchors to navigate the world.