See this post and prior discussion: https://​​forum.effectivealtruism.org/​​posts/​​3jgpAjRoP6FbeESxg/​​curing-past-sufferings-and-preventing-s-risks-via-indexical
Maybe you can duplicate people and preserve their identities without also putting them in their original horrible situations, since that could cause immense suffering and be horrible on most other views.
See this post and prior discussion: https://​​forum.effectivealtruism.org/​​posts/​​3jgpAjRoP6FbeESxg/​​curing-past-sufferings-and-preventing-s-risks-via-indexical
Maybe you can duplicate people and preserve their identities without also putting them in their original horrible situations, since that could cause immense suffering and be horrible on most other views.