Dark Energy is HYPOTHETICALLY what we think is the cause of the expansion of the universe

YES!! i read it has been proven (about dark energy) and i was like.. what?? are you retarded? yeah, they proved beyond doubt that the areas of the
universe will cant even visit are made of "dark energy"??? I think not.
then i scrolled down and i exclaimed outloud, because WolfofWar said exactly what i was thinking.
so its just a place-holder, like i said.