I always wondered if for knowledge as for ecosystems fire is an important part. Basically, is there a point where the amount of knowledge is so wast that it becomes impossible to reach the edge and come up with something novel.
Nah, ideas becomes simplified and refined overtime. E.g. quantum mechanics was the bleeding edge of physics at one time and now it’s taught to undergraduates. Some university even have classes in string theory for undergrads (not that this is a good idea).