I’ve been meditating casually for almost 10 years, I couldn’t sit still for a minute when I started and can sit regularly for an hour now. I still have a lot of skepticism about the sensations that other meditators describe feeling, like jhanas and profound states of tranquility and whatnot. I have experienced deeper calmness and have made some insights about my brain (eg thoughts are like a sensor organ not unlike a…
I don't think the things you're describing are particularly 'superhuman.' I definitely can achieve (if that's the right word -- it's almost certainly not -- how about 'experience') psychedelic states. Everything is kind of a psychedelic state if you look at it the right way. What is your personal experience with psychedelics? I wonder if you maybe haven't done them much you might not know how to spot it.
To me, clearly, the big question of superhuman meditation claims is the claim of some people to be enlightened. I personally think there is something to it, though I don't really know exactly what it is and I'd like to learn more about it.
BTW, my experience with meditation comes mostly from (controversial Wild Wild Country guru) Osho. Sounds like you're familiar with Buddhist traditions. There are a lot of ways to meditate.