Gotta love the James Webb Telescope as well as the Chandra X-ray Observatory for this find!
The black hole's voracious appetite, which has allowed it to pile on more than seven million solar masses in just 12 million years, exceeds the theoretical maximum growth rate and goes some way to explaining how black holes could grow so massive so quickly in the early universe.
While we know about the Eddington limit, a theoretical limit to the amount that a black hole can consume at any one time, this fast-feeding black hole however seems to be a "super-Eddington". These
accretions can be maintained for a short time before the feedback blows away the black hole's food, and indeed super-Eddington accretion has been observed before and had even been proposed as a mechanism by which supermassive black holes grew so massive so quickly. LID-568 is, however, the best and clearest example yet found."This extreme case shows that a fast-feeding mechanism above the Eddington limit is one of the possible explanations for why we see these very heavy black holes so early in the universe," said Scharwächter.