Something that only thinks of the things thought before isn't much of a tinker now is it?
Moreover, most novel advancements seem like they come when society is ready for them - the nearly simultaneous discovery of calculus for example.
Pick any thought of yours you truly believe is novel and do a serious literature search on the topic and adjacent fields. Ask an AI to help you with the search if necessary :-)
There's so much I don't know though, and I'm certain we aren't the only two who think about it :-)