Eternity is esolang concepted by user:Jabutosama. It would be maybe one of the most useful languages in the world, but is had one problem which makes language not useful at all.
Eternity has one of the most simple syntaxes ever seen in programming language:
World Of Warcraft Copy
But, sadly, even the smallest code uses eternity to be decoded and launched, making language useless. A eternity interpreter exists on the #esoteric char and here created by by the user user:CallowaySutton