I think this might be useful if you are supplementing your learning from actual sources. Like you casually said you understood counter-intuitive things about diabetes/insulin, dopamin and motivation etc but these are very complex topics and require a lot of study to fully "understand". Its okay if you just see it as curiosity-driven learning but I dont see this as a way to learn anything that is actually important or serious.

Traditional method of looking up stuff, going through guided lessons etc are just more streamlined and faster than this method.