You have to be careful with this (see also the comment by user "akomtu" in this thread). When you know the subject already and you are just adding more on top,

You have to be careful with this (see also the comment by user "akomtu" in this thread). When you know the subject already and you are just adding more on top, it may be helpful to reduce the new ideas to Keypoints/Keywords and hang the details off of them in memory. But when you are new to the subject you do not as yet know what to omit and what to keep; you are making a judgement call during "condensation" and thus it behooves us to be careful so as to not lose the core ideas which is bound to happen if you try to "compress" too much.