“Do you really think that cryonics advocacy is comparable in efficacy to the most efficient ways of working against existential risk?”
No, but I do think spending money on cryonics probably increases expenditures on existential risk. Cryonics and existential risk spending are complements not substitutes.
Also, your not first best argument against cryonics also applies to over 99.999% of human expenditures and labors.
“Do you really think that cryonics advocacy is comparable in efficacy to the most efficient ways of working against existential risk?”
No, but I do think spending money on cryonics probably increases expenditures on existential risk. Cryonics and existential risk spending are complements not substitutes.
Also, your not first best argument against cryonics also applies to over 99.999% of human expenditures and labors.