After Hell, probably a lot of people know about the rebirth thing. And by now he does indeed know about most peoples' remains stick around after death. Lapis' decorative lawn skeleton, being a real corpse found in Atlantis, made an excellent if unsettling introduction to that concept. Oozing, though... that would be news.

"So nothing's left?? How do you have funerals, without something to..." Papyrus gestures with one hand, fingers flickering down like he's carefully sprinkling something.