[the99thguy]

I wonder if your brain could deal with that... If you don't emulate any sensations or bodily "communications" would your brain just snap?

[Rychard]

Hopefully the shock of having literally no sensory input would prevent your brain from entering such a hell.

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[AstralStorm]

People hallucinate without sensory input and some of those hallucinations can be terrifying.

Read up on sensory deprivation tanks.