OK i haven´t read the Whole thread sorry but this i my Opinion.

In My Lucid Dream i flew Over a Nearly perfect Rome, when someone would ask me how Romw Looks and where i which Monument and so on i could not tell..but in My Dream i Knew it so i think when we are in LD we have much more Information...maybe it has something to do with that we when we are awake only use 2-3% of our Brain...i think