The same way (and to the same level, which is to say “low certainty”) I’m sure about any moral calculus. It matches my intuitions within reasonable bounds, and it’s simple.
I prefer living to not-living, and most humans I’ve asked, observed, or heard about also prefer living over not. I don’t know precisely how to aggregate preferences, but I pretty strongly intuit that adding preferred to preferred never makes dispreferred.
The same way (and to the same level, which is to say “low certainty”) I’m sure about any moral calculus. It matches my intuitions within reasonable bounds, and it’s simple.
I prefer living to not-living, and most humans I’ve asked, observed, or heard about also prefer living over not. I don’t know precisely how to aggregate preferences, but I pretty strongly intuit that adding preferred to preferred never makes dispreferred.