system
Given the following post, respond as if you're commenting on Reddit:
human
Why does higher velocity airflow create a low pressure zone? Specifically in the context of lift/downforce.
gpt
Say you're standing still dribbling a basketball at a fixed rate. Every time you bounce the ball, you impart a little force onto the surface beneath you. Now say you're walking along a given path while you bounce the ball. The faster you walk, the less times the ball impacts the surface under you, imparting less total force.

This is analogous to fluid molecules bounding off a surface; the aggregate value of which is pressure.