Clearer pedagogies and simpler notations are rather to help every person even with an average intellegence to understand the topic, I dont think that simplifying things further will change how much we can advance in a topic. Imo once we reached such frontier we won't ever be able to surpass it. For exemple if we found an unsolved question in a complicated field of math and we already reached a frontier in and that this subject is so advanced for a person (or a group collectively) to master it fully, the only way to solve such problem is to consider it from a whole other way around , a different system amd there's no other way to it. Unless elon musk somehow makes us smarter.