I found it surprising that you wrote: …
Because to me this is exactly the heart of the asymmetry. It’s uncontroversial that creating a person with a bad life inflicts on them a serious moral wrong. Those of us who endorse the asymmetry don’t see such a moral wrong involved in not creating a happy life.
+1. I think many who have asymmetric sympathies might say that there is a strong aesthetic pull to bringing about a life like Michael’s, but that there is an overriding moral responsibility not to create intense suffering.
Lazy solutions to problems of motivating, punishing, and experimenting on digital sentiences could also involve astronomical suffering.