gadrin wrote:Kuseru Satsujin wrote:That's because I use a simplistic formula. P.E.xmelees for normal P.E., doubled for Extraordinary, tripled for Superhuman, and quadrupled for Supernatural (P.E.xminutes).
that seems soft given the formula in Rifts Underseas.
I suppose it might, in a way, but if you remember, the average person has a P.E. of effectively 11, meaning they can hold their breath for almost three minutes before drowning (fairly realistic), whereas a supernatural creature can hold it's breath quite long underwater.
I suppose I can't really criticize, since it's an "all over the place" issue much like the one that forced you to write up the PE stuff in the first place.
I went with the KISS method of doing it, and oddly enough it seems to work well.
For supernatural PE, I'd probably tend towards PE in Hours or 1/2 hours, -- something a little more heroic.
Several supernatural creatures already only hold their breath for PE in minutes. I could probably go into some big scientific discourse about lung size/capacity vs consumption of oxygen, but really, P.E. in minutes is quite heroic enough already, especially given that the average supernatural creature would be able to hold their breath for 15-20 minutes...about five to seven times that of the average human.
of course it would be a nice way to kill off a demi-god/godling/dragon hatchling character
Suffocation is always a nice way of killing your enemies.