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A float tank...assuming you sit in it and float...? Need to get me one of those!

The water is loaded with salt so you are buoyant and float easily. The tank is sound and light proof. Everything is heated to body temperature too. The result is sensory deprivation, allowing your brain to devote 100% of its energy to your thoughts. People use it for relaxation and meditation.

flip, that sounds awesome! I know the right place to put one...

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