and normally they don’t interact
But dark energy and dark matter make up 95% of our universe. So they would be the “normal”.
If anything, the 5% that we do know would be the “abnormal”.
And anyway, it’s only called dark energy and dark matter, not because it doesn’t have a cause, but because it doesn’t interact with light (photons don’t interact with it).
Although I think you are right that they don’t know what causes it. It does interact with gravity, though.
But all this is way beyond my tiny brain.
This is incorrect. This is not a healed scar at all. That’s a very fresh burn wound exposing the flesh underneath without the melanin layer.
You can literally see the wound is fresh and is peeling off. Not a healed scar.
Go look up healed burn scars on black skin. The images can be pretty gruesome, but the melanin mostly returns.