Hacker News Reader

I've been in one of these before briefly, and I'll agree it immediately affects your balance - in a way that wearing headphones doesn't. Not sure why, perhaps the brain only uses these cues below a certain threshold of sound.

That was in a chamber with the lights on, and only for a few minutes. I won't discount the possibility that after a half hour it could be very difficult to maintain balance.

They challenge people to do this in the dark - you would also lose the visual cues. (I struggle to maintain balance in the dark anyway - don't know about you.)

Vision is an important part of keeping your balance and this is in the dark. Try running on an obstacle-free flat surface with your eyes closed.

People use float tanks [all the time]

How well do you 'balance and manoeuvre' in a float tank?