Fair question but the answer is pretty simple. Let's use your example and I'll be a bit obtuse.

If you read a book on a breakthrough in a science, then use that knowledge to invent a thing, that thing is something you've created.

If, on the other hand, someone takes that same book, rearranges a couple words, and puts their name on it, they did not create anything, they stole something.

Again, I'm being obtuse here.

One thing I will disagree with:

"My brain has been 100x more productive than that of my parents, who did not have internet."

Maybe in your case and I don't know, but we got a lot done before the internet. :)