Maybe, but I doubt that as technology seems needs a lot of specialists. You don't have time to focus on one small area in depth if you also need to farm/hunt/gather. We need generations for someone to come up with the idea of writing, make it better, educate kids in it... And of course before the printing press books took a lot of time and so even if you created something passing it to someone else is hard.

Primitive people were not stupid, they just needed a lot of time to figure out things that we now think are obvious.