The 5 orders of magnitude gained from general computers to asics is standard knowledge, you learn it in the first year of any comp sci class. You can find it all over, for example.
The main thing that you are missing is that the human mind also brute forces to come up with ideas. There isn't a difference. We don't have some super magical mystical human thing that sets us apart.
A way to imagine how it can be possible for a computer to have thoughts and ideas just like humans is this: Imagine you take a human brain and you switch out one neuron for an electrical part, and you leave the rest of the brain as it is. Can that brain have thoughts and ideas like a human? Obviously, yes. What if you switch out another one? And another. If each electrical neuron is doing the same thing as the original one, then eventually you could switch out the entire brain and have an entirely computer brain doing exactly what a human does. At what point would you say that this machine is no longer doing what a human does and just "Brute forcing" ideas?
I totally get that right now, with lots of jobs at risk, many people are really concerned with holding onto the idea that hunans have a monopoly on thinking and thoughts. I think it's important to now let what we want to be true to interfere with our analysis of what is true.