About the lucid dream defenition, I think that a lucid dream should be defined as only being aware that one is dreaming and recall the goals he put(like Laberge). I believe it should be like that because of technique assesment. Sageous makes a very important point, that self-awareness is very important to experience a good LD, but it should be related to the techniques only, not to the defenition itself. What I mean is that, to evaluate a technique, one should make sure the technique provides LDs, and does not hinder self-awareness.

As for the attaining lucidity topic, I studied the types of memory, and still think that memory is an essencial factor of LDing, as well as self-awareness(no environmental awareness is needed to be trained bcz we already poses it in dreams, but lack the other factors). Expectation and intention are very important too(seems like Sageous's fundamentals are truly the right way, but we need to study them more). I will study this more and report my results.