system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does spinning around in a circle make us dizzy?
gpt
IIRC, balance is sensed in the inner ear by a pocket of fluid.  When you spin in a circle, the fluid starts to spin too (think whirlpool); when you stop spinning, the fluid doesn't.  Ergo, although you've stopped, it continues to feel like you're spinning.