Thanks for the write-up!

I found the figures for existential-risk-reduced-per-$ with your default values a bit suspiciously high. I wonder if the reason for this is in endnote [2], where you say:

say one researcher year costs $50,000

I think this is too low as the figure to use in this calculation, perhaps by around an order of magnitude.

Firstly, that is a very cheap researcher-year even just paying costs. Many researcher salaries are straight-up higher, and costs should include overheads.

A second factor is that having twice as much money doesn't come close to buying you twice as much (quality-adjusted) research. In general it is hard to simply pay money to produce more of some of these specialised forms of labour. For instance see the recent 80k survey of willingness to pay of EA orgs to bring forward recent hires, where the average willingness to forgo donations to move a senior hire forward by three years was around $4 million.

Thanks for the post, as a minor nitpick, shouldn't the maximal DALY cost of doing something for an hour a day be 1/16, since there are only 16 waking hours in a day and presumably the period whilst asleep does not contribute?