it should never be forgotten, i think, that from the earliest (vonbraun) suggestions of a plan to build a space station it was always referenced as a 'permanent space station'.
pss
being as it was in the time of the contrived cold war, when of course only the supers (powers, heroes) could dream of such endeavors, and cooperation between such diametrically opposed ideologies was unthinkable, the international insert to the acronym was not a consideration.
but then along came rocky 4, red heat, and gorbachev, and everything changed. in came the 'i' of the international, but where is the 'p' for the permanency?
iss should be piss.
blobs of urine, amonia 'leaks', and general tone of the exercise.