Given a non-trivial population to start with, it will be possible to find people that will consent to copying given absolutely minimal (quite possibly none at all) assurances for what happens to their copy. The obvious cases would be egoists that have personal value systems that make them not identify with such copies; you could probably already find many of those today.
In the resulting low-wage environment, it will likewise be possible to find people who will consent to extensive modification/experimentation of their minds given minimal assurances for what happens afterwards (something on the order of “we guarantee you will not be left in abject pain” will likely suffice) if the alternative is starvation. Given this, why you do believe the idea of selection for donation-eagerness to be fanciful?
Given a non-trivial population to start with, it will be possible to find people that will consent to copying given absolutely minimal (quite possibly none at all) assurances for what happens to their copy. The obvious cases would be egoists that have personal value systems that make them not identify with such copies; you could probably already find many of those today.
In the resulting low-wage environment, it will likewise be possible to find people who will consent to extensive modification/experimentation of their minds given minimal assurances for what happens afterwards (something on the order of “we guarantee you will not be left in abject pain” will likely suffice) if the alternative is starvation. Given this, why you do believe the idea of selection for donation-eagerness to be fanciful?
With near subsistence wages there’s not much to donate, so no need to bother.