Is currently -not- possible, but, to make it so, requires a method to pause water in a time-locked solid state which isn't slippery or cold. Only then could it be remotely possible.
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How would you make it move? [spoiler]Your logic is invalid[/spoiler]
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By defying reality, when we can. A Coldfire engine?
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Well that could do it, but how would you sit?
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Consider snow chairs.
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I see