Freezing yourself.

[PBI]

Which can't be done, due to the Third Law of Thermodynamics; nothing can reach absolute zero.

To be fair though, my understanding was that it doesn't have to be absolute zero, just very cold - the important thing is the rapid cooling, such that the water does not have time to form crystals before freezing.

Why you'd want to do this is beyond me though. And if you wanted to travel to the future, exploiting the Twin Paradox seems to me like a much more agreeable way to do it.

[Samurai Waki]

Which can't be done, due to the Third Law of Thermodynamics; nothing can reach absolute zero.

To be fair though, my understanding was that it doesn't have to be absolute zero, just very cold - the important thing is the rapid cooling, such that the water does not have time to form crystals before freezing.

Why you'd want to do this is beyond me though. And if you wanted to travel to the future, exploiting the Twin Paradox seems to me like a much more agreeable way to do it.

I heard somewhere in a Cryonics class I took many years ago, that it had to be the unattainable absolute 0, but this was explained from a Teacher, and not a Professor/Scientist.