system
Given the following post, respond as if you're commenting on Reddit:
human
Why does heat coming off pavement on a hot day blur my vision?
gpt
Layman's guess: Warm and not-so-warm air mixes in a whirling motion. Air at different temperatures have different density, and the border-zones refracts light slightly, similar to between air and glass, or air and water... edit: as between any transparent materials at an angle. Think of the moving air streams as wobbling lenses.