system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can't we feel the g-force of the world spinning so quickly through space?
gpt
You actually *do* feel it.

Because of your angular momentum, there is a slight centrifugal force acting in you, pulling you away from the center of mass of the planet. This effect, however, is small and is matched by the centrifugal forces experienced by everything around you — which all have the same or nearly the same angular momentum.

You're not *aware* of this force vector because there is never an appreciable and swift change in the acceleration it provides — there is no *jerk* of it.

Since gravity provides acceleration towards the centre of mass of the planet, our brains are used to constant acceleration and think of that as "steady" and "normal". We perceive not the acceleration itself but the *change* of acceleration — termed the *jerk*.

So, in short, you're not aware of it because they're not jerks about it.