If writing is thinking, AI-assisted writing should help you think, not write the damn thing for you. As such the current solutions I’m seeing, including Notion, fall short.

Design and software at Apple. Also into AI, philosophy of mind, ethics.

When I write something and someone better at writing helps me that says my thoughts better than I wrote the first time, I am grateful, and end up with better clarity on the topic. 

AI will do the same, it just might not directly teach you how to get there yourself the next time

Values-Aligned Communities | citizen of Black Rock City

We’ll see how it shakes out. It will be interesting to see what happens when it starts being able to figure out the structure of your arguments and deeming them sound or unsound.