/jp/ - Otaku Culture

>>2045644

Because the Hourai Elixir is one of the big mysteries of Gensokyo.

(Why do Type-Moon threads inevitably become about powerlevels? Because powerlevels are a big mystery in the Nasuverse. Especially with all the inferior powerlevels defeating the blatantly superior powerlevels.)

Being immortals, they have a lot of unknown history (imagine your entire life, and then realize that it's only in the double-digits.), and a long ways to go (youkai eventually die over thousands of years, they will not), as well as how physics interacts with their powers.

HOWEVER, Gensokyo does not obey physics, so as long as they're in Gensokyo, they do not have to worry about heat death and whatnot.