Why this word is great
POSTETERNITY — [Noun] An infinite future duration, an eternity stretching endlessly forward. From post- ("after") + eternity ("infinite time"), it is the horizon that never arrives. Unlike "preeternity" (which gazes backward into an unfathomable past) or "eternity" (which lingers in an undifferentiated forever), posteternity is the cold, clear light of what will be—and only what will be. It is the silent expansion of the universe after the last star winks out, the unbroken march of seconds in a clock with no hands, the weight of all possible tomorrows pressing down on the present like an ocean with no shore. A promise that, eventually, even oblivion will be forgotten.