system
Given the following post, respond as if you're commenting on Reddit:
human
I understand the first 4 derivatives of position, (displacement, velocity, acceleration, and jerk) but can someone explain snap to me?

Everything up to acceleration is quite easy to understand.  Even jerk is somewhat easy: the change in acceleration.  But how do you explain snap, the change in the change in acceleration, in layman's terms...
gpt
Let's add a layer of abstraction:

You have a foot pedal, and the position of that pedal perfectly controls the acceleration of a vehicle, Jerk is how fast the pedal is moving, and snap is the acceleration of the foot pedal.