RV is like where the CIA administers psychodelic Koolaid to some kook in an isolation chamber and then provides him with a pad of paper and some pencils and he draws some chicken scratch on the pad and some other kooks interpret it to represent a super-secret military installation in Outer Bumfuckovik.
Remote viewing is an alleged talent to see using other's eyes. It is supposedly the ability to see exactly what someone located at a different place is seeing.