I believe "discretionary" are those who have rules but much more flexible
The categories each manual trader falls into
Mechanical
Subjective (aka discretionary)
Intuitive
If one can't trade as the first - the other two are impossible to attain..., as each takes the skills from its predecessor - then requires the trader build additional skills on top of that in order to successfully trade
Many.., by default..., find their self (perpetually stuck) in the second..., falsely thinking it easier
RN

