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:
hello world program
execute input as it was brainfuck code
World Of Warcraft Copy
launch identical copy of world of warcraft
But, sadly, even the smallest code uses eternity to be decoded and launched, making language useless. A eternity interpreter exists on the #esoteric char