Fields don't die---they deepen fractal-like.
The author said he has learned everything about computers and the magic is gone, because it understands them.
Is this really possible? The world of computers and the internet is so deep, it seems like someone could study for their whole lives and never fully understand it all.
Yeah, you can definitely understand computers to the point that nothing about them is really mysterious. It takes a while, but lots of people have done it. There might be lots that you aren't aware of - but none of it will come as a surprise once you've learned how it all works.
I guess at some fundamental level, though, it's based on (quantum) physics, and lots of that is still mysterious to us. But that's way deeper than anything you come across with computers.
"There are known knowns; there are things we know that we know. There are known unknowns; that is to say, there are things that we now know we don't know. But there are also unknown unknowns – there are things we do not know we don't know."
If you understand a hammer and chisel fully it does not make you Michelangelo.