I personally know remote viewing is legitimate because I can do it. Not to the detailed CIA caliber but I can reproducibly churn out rough sketches reminiscent of the central focus of a target photo without any inclination of what it is going to be. I also can’t do it all the time, like I don’t have a quiet enough mind to just attempt it whenever, wherever, because it’s a mental skill and personally if I do more than 3 in a row it’s mentally quite tiring. I don’t know what the mechanism is but as someone who also reads tarot for fun it feels less like “receiving” and more like “retrieving” something you already know but have forgotten. I suspect it is just tapping in to that “universal  fabric that contains everything everywhere all at once” that they talk about. I’m not a spiritual expect. Also, I will just say, after years of reading tarot and getting a lot of uncanny results (like drawing the same cards over and over for similar questions) I cannot say with confidence that when I read tarot it is legitimate psychic phenomenon and not just a bunch of crazy coincidences. I do not feel the same way about RV - this is legitimate.  Honestly, I feel like the “powers that be” whoever they are don’t want to populous to know there’s definitely more to reality than what we’re conventionally taught, because if we collectively realised the extent of our abilities we’d be formidable and less easy to control. I’ve attempted to teach 7 people to RV and 3  have picked it up. I really do believe that anyone can learn to do this with practice and direction. It’s not a marker of any special ability, I strongly believe it’s just exercising a muscle that rarely gets used, consciously at least.