I can also come out with theories, it doesn't mean that they are feasible. It's a bit like cinema, when they predicted the smartphone, space travel, etc. it wasn't feasible at the time. It's easy to predict things, you don't need to be a psychic. So yes, although this is a serious study, it remains a simple theory. At least, that's what I think.
It’s essentially the same as the story of this puzzle. Someone is trying to determine how resistant BTC is to quantum computing attacks. That’s why these challenges were released with some ridiculous prize. I mean, if someone actually succeeded at this, they wouldn’t need a reward. Someone is just testing ideas and seeing how far people have progressed with them. Nothing more.