In the interests of avoiding the planning fallacy, we could probably think of some reasons to go a bit bigger.
For example, it might be that more expensive yet more effective procedures are developed that cannot in good conscience be left out (due in turn to advances in what we know about biology, i.e. that today’s cryonics is worthless). In that event we might envision the cost as reasonably expanding it to say $500k per person, or around 50% of the GDP.
Do we know any ways to increase the world’s GDP by 50%?
In the interests of avoiding the planning fallacy, we could probably think of some reasons to go a bit bigger.
For example, it might be that more expensive yet more effective procedures are developed that cannot in good conscience be left out (due in turn to advances in what we know about biology, i.e. that today’s cryonics is worthless). In that event we might envision the cost as reasonably expanding it to say $500k per person, or around 50% of the GDP.
Do we know any ways to increase the world’s GDP by 50%?
Wait a few years.