It seems likely that you could get much of the benefit of cryopreservation for a fraction of the cost, without actually getting your head frozen, by just recording your life in great detail.

A while back, I started tracking e.g. every time I switch between windows, or send out an HTTP request, etc. - not with this in mind, but just so I can draw pretty graphs. It doesn't seem that it would be beyond a superintelligent AI to reconstruct my mind from this data. For better fidelity, maybe include some brain scans and your DNA sequence.

And this sort of preservation might be more reliable than cryopreservation in many ways - frozen brains would be destroyed by a nuclear war, for instance, whereas if you put a hard disk in a box and buried it in a desert somewhere that would probably stay safe for a few millennia. To be more sure, you might even launch such a "horcrux" into space, where pre-singularity people won't get their grubby monkey fingers on it.

If the entire internet were backed up in this way, that might be a lot of people effectively preserved.

Thoughts?

(Also, upon doing something like this, you should increase your belief that you're in an ancestor simulation, since you've just made that more feasible.)

(Also, this would go badly in the case of a "valley of bad utility functions" fooming AI.)