Fun conspiracy theory: Hal Finney was Satoshi, and invented Bitcoin for his own personal benefit.

Cryonics companies make you pay for perpetual stasis, but not for revival, since there is no cost estimate. And no one knows that it will not be enormously expensive.

If you expect to have use cryonics, and it may be centuries before revival is possible, how do you ensure that someone will be willing to pay for it?

If you set up a perpetual trust, it is virtually guaranteed that it will be stolen, given away, confiscated by governments, or taken little by little by lawyers. This is pretty much a fact about what happens to such trusts, when and if they are even legal in the first place.

What he needs is money that can be locked away forever purely by the use of information, and recovered the same way. If cryonic revival works at all, it will restore the information stored in his brain, which means that you can, after all, "take it with you."

A fixed supply cryptocurrency fits the bill perfectly. If it succeeds at all, it will eventually become enormously valuable, simply due to supply and demand.

Critical objection: if this is the case, why didn't he say at some point before he died that if people wanted access to Satoshi's fortune, they would need to revive him?

Obvious answer: such a statement would have been *enormously* destructive to Bitcoin's future. "I invented Bitcoin for my own personal benefit," even if true, would have made it the equivalent of a meme coin. At that point in its lifecycle, it would have likely went to zero.

And he didn't need to say it. A meaningful chance of access to a percentage of his fortune will be motivation enough for the future to act.