Mirrors reverse left and right.
Why don’t they reverse top and bottom?

Question

Accepted Answer

They don’t reverse anything. They flip front-to-back — our brains interpret that as left-right because of body symmetry. — One of physics’ most misunderstood questions. Text reads backwards not because of mirror geometry, but because you’d have to turn around to read it forward.

Mirrors reverse left and right. Why don’t they reverse top and bottom?