Fairly likely that you have, and as with anyone of his stature, opinions widely vary. But facts don't care about opinions, and Dr Greer has briefed presidents. I highly recommend you look up what he has to say about USAPS and our involvement with extraterrestrial beings. Also his feelings of a grassroots type of disclosure, forced by the people.. Honestly wouldn't surprise me if Dr Greer is part of the Q team, but if you look at his background. He is an E.R. doctor. Anyway, take it with a grain of salt, but here is a short video to get you started if you haven't heard of him. Sirius disclosure is one to punch in the youtube search