The evolution of pain.

[Aoi Magi]

Pain as a warning system is good and makes sense.
Excruciating/paralysing pain however is a hindrance, and I fail to see the evolutionary benefit of it.

Perhaps that's the actual point though... that the more unpleasant it is the more it interferes with other actions you could take... like you can't concentrate on anything else. Because if it was say like a Terminator readout instead... just a neutral damage report... then maybe it wouldn't be treated with the same priority as with pain?

But in case of paralyzing pain it actually hinders our ability to get away from the source of the stimuli or find some other means of easing it. What's the point of a warning if all escape routes are already blocked?