I know. But if ordinary matter and energy are basically one and the same, it makes sense that the other two might also be. And they are attempting here to somehow connect these other two.
Dark energy and dark matter are theoretical constructs, postulated by cosmologists to explain glaring faults in the 'expanding universe' theory. No one has yet proven that they, in fact, exist.
Attempting to tie these artificial constructs back to real matter and energy, is little more than burnishing these dreamed up goblins with the air of authenticity that association with known science can bring.
What's hilarious (and all too predictable), is that theoretical physicists resort to dreaming up another band-aid to patch the previous band-aid, which was dreamed up to patch yet another band-aid.
Unlike classical physicists, they seem to have no familiarity with falsification or going back to the drawing board when their theories fail. They just dream up another fanciful goblin to explain why their model doesn't work, and keep on cashing the federal grant checks.
That's not science. It's taxpayer funded science fiction.