>It causes the sensation of extreme damage without the actual damage This is almost precisely how the "nerve induction box" in Dune is described. The one that

>It causes the sensation of extreme damage without the actual damage This is almost precisely how the "nerve induction box" in Dune is described. The one that is used to test Paul with the gom jabbar. Imagine if Gaius Helen Mohiam instead of saying "Stick your hand in the box" said, "Stick this pepper in your mouth, chew and swallow." In the book scenario Paul had to trust Mohiam that his hand was not actually being burned away, and also once the test ended she could end the pain at once. With the pepper he'd not have to trust her because he'd know about capsaicin, and she could not end the pain (unless we posit a capsaicin antidote).