I think there’s a huge misunderstanding of what “original ideas” are and what constitutes novelty.

Mark Twain quote on originality:

“ There is no such thing as a new idea. It is impossible. We simply take a lot of old ideas and put them into a sort of mental kaleidoscope. We give them a turn and they make new and curious combinations. We keep on turning and making new combinations indefinitely; but they are the same old pieces of colored glass that have been in use through all the ages.”

I am not sure how humans “come up with new ideas” themselves. It does seem to be that creativity is simply combining information in new ways.