“As I have said many times, it is simple, but not easy.” – Warren Buffett.
Buffett is of course talking about investment, but the same seems to me to be true of mapping (whether of the decision, argument or hypothesis variants).
The principles are simple enough. What for example could be simpler to state and understand than the Rabbit Rule – and yet it is so profound, and has such power.
Mapping is not easy, in large part, because it is just a visual discipline for clarifying our thinking. And clarifying our thinking is not easy, even with visual discipline.