Step a Few Inches to the Side

You’re watching a window spin on a thread. Nothing dramatic. Just a flat shape turning in space.

Except it isn’t turning. Or at least, that’s not what it looks like. The long edge keeps snapping forward, then retreating, as if the object can’t decide which way it’s going. You’re told it’s rotating in a full circle. You might even believe it. But your eyes don’t cooperate. They insist on a back-and-forth motion that isn’t happening.

Now a pen is fixed through the center. The pen makes the rotation obvious. It traces a clean circle in the air. There’s no ambiguity there. But the window still refuses to follow. It appears to reverse direction, passing straight through the pen as if matter has suddenly lost its rules.

At that point, the problem is no longer the object. It’s you.