We are well aware of ChatGPT but there may well be better AI hardware / software somewhere. Plenty of people are working on their own versions of it worldwide, including all the major computer hardware / software companies.

Let's suppose that someone instructs the best of these to design both hardware and software that is better than it. Then that is created. Then someone instructs that to design both hardware and software that is better than it. Then that is created etc.

Given that prototype quantum computers are already being created the combination of what AI could do on a quantum computer is much more than frightening. It could be so good. It could be cataclysmic.