Was thinking of excruciating pain in the context of the qualia conundrum.
Started with a design of this fantasy robot: I'm going to make it with sensors on its skin panels, so that when you attempt to remove them, it goes into an extreme avoidance state where it stops everything and fights as hard as it can to keep you from opening it. Something like how c. elegans would squirm violently if you were to start cutting it open.
Now, my robot would not "feel pain" or really suffer. It would just engage in extreme measures to avoid being opened up. I suspect c. elegans does not feel pain either, but most any animal goes into a state of extreme injury avoidance as if it really did suffer.
We do, however, really suffer, and pain is, I guess, an example of a quali that seems extremely mysterious, because I have no idea how to engineer a robot that experiences extreme pain to accompany extreme injury avoidance actions.
Explain to me again why the p-zombie argument is incoherent, because this example makes it seem pretty coherent. What do I need to do to unzombify my robot?