Email is a near universal experience that I can talk about personally. The Cal Newport QEC one is powerful in it’s own right — but in the past for most readers.
So basically, all examples have trade-offs here. Can you think of a better example?
My other systems are incredibly niche.
For example, I read a lot of physiology and endurance training. And I have a system for categorizing what I read that’s about timing and phases of physiological adaptations.
My pace of learning is way higher after this system — but I don’t think many people can relate to it.