That whole thing with him being able to detect Ultraviolet light? And all those "intuited" starcharts?
Huh?
I hate loose ends.
I keep imagining there being an alternate ending where someone comes and takes the catatonic Prot away in a beam of light, right in front of Doctor Powell's eyes, shattering his cynicism and making him a more interesting person.
Alas, it is not to be...