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Tetronian comments on Martinenaite and Tavenier on cryonics - Less Wrong Discussion
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Because people want to know if the "how" is even possible. But the fact the "how" will depend on technology that hasn't been invented yet arouses a great deal of skepticism.
Why should it? There's plenty of indirect evidence that this is technology that will be invented eventually, if there's a future at all for it to be invented in. There are already three general research paths we know of that can lead to successful reanimation: nanotech, biotech, and uploading. All three of these, in all their various incarnations, would need to fizzle and uniformly continue to produce no results in this area, for hundreds of years before cryonics will have failed. In short, the predictions we're making pretty much have to somehow contradict the laws of physics. They don't have to simply be optimistic in order to fail to happen for hundreds, perhaps thousands of years of rich scientific progress -- they have to be totally bonkers.
So we should just assume that any future technology we would like to imagine is assured of happening, given enough time?
If that is the case then I don't need to waste my time with cryonics because I am assured I will be resurrected in a Tipler Omega Point.
The argument is not that everything that seems possible is inevitable. Rather it is that this particular area of possibility-space is a generally reasonable one given a reasonably allowable timeframe for cryonics patients to be stored. Current advances in printing organs, scanning connectomes, building nanomachinery, etc. are pretty good indirect evidence of that -- provided the loss of structure isn't excessive.