you know what this means? arxiv.org needs a cryogenics section, for potential resuscitation of mathematical campaigns using future technology. it'll be challenging to keep out the crackpots, though --
i actually meant an archive of papers where mathematicians from the future could try to improve or dig gems out of (using computerized theorem provers or just pen and paper). Papers like ramanujan's notebooks or this guy's proof of Goldbach. But freezing brains could be worth thinking about --- maybe a crowdsourced fund like kickstarter to freeze society's favorite brains.
Well, freezing destroys cell membranes, unfortunately. There's no way to repair every cell. And even if you could, there's no guarantee the overall system will function the same afterward.
Cryogenics will probably take the form of sustaining life, rather than freezing what has already expired.
For example, perhaps slowing a physical body's metabolism for decades would enable the body to last centuries before dying. So it'd be "time travel" to the future. But that has horrendous logistical issues, e.g. feeding, maintenance of the chamber, somehow retaining muscle mass of the person, avoiding bed sores, waste disposal, antibiotics during times of sickness, regulating body temperature, a failsafe for each system, etc.
