I am assuming that if I discover Causative Vision I will notice a difference between it and Active Vision?
LOL! I wish it were this simple! If it was this simple it would not take lifetimes to train a seer! By far the GREATEST problem in training a seer is to get the seer to shift ALL of his or her perception through and beyond the highly intoxicating PULL of the enthralling GLAMOUR of ILLUSION! It takes lifetimes to accomplish this! LOL!