It sounds like the author and many of the commenters here (who claim benefits) didn’t go into it blind. They began their mindfulness journey by practicing medit

It sounds like the author and many of the commenters here (who claim benefits) didn’t go into it blind. They began their mindfulness journey by practicing meditation, and then after a while got into a tank. Thus they were predisposed to having a useful experience, bec they’d done a lot of the mindfulness work already. The float tank just makes reaching a mindfulness state easier, if you already have some of “the tools”. You sound like someone who hasn’t done any of the work to reach a mindful state and thus had a terrible experience more akin to solitary confinement. I actually wholeheartedly disagree with the author’s conclusion that a SDtank is a shortcut. He’s using his own experience and the results of one or two studies in a field fraught with badly managed studies that can rarely be replicated. That is, I don’t believe the studies can be taken at face value.