What about externalities that don’t relate to reanimation? For example, we might expect an increase in public confidence in the scientific method rather than supernaturalism as a solution to the big scary problems. Perhaps there would be more STEM professionals and less clergy in a world where cryonics is common. Perhaps it will lead to increased aggregate demand for hard to cure yet rare illnesses (especially forms of brain damage).
Externalities are irrelevant if it turns out that revivification is impossible and cryonics doesn’t work.
What about externalities that don’t relate to reanimation? For example, we might expect an increase in public confidence in the scientific method rather than supernaturalism as a solution to the big scary problems. Perhaps there would be more STEM professionals and less clergy in a world where cryonics is common. Perhaps it will lead to increased aggregate demand for hard to cure yet rare illnesses (especially forms of brain damage).