OTOH, in my experience at least, people become a lot less biased when it comes to themselves. Few people would want to be factory farmed ;)
Do they, or does their bias just change?
In my experience, people value themselves vastly more than they value other people. Ergo, if you replace them with someone else, they consider it a huge loss in utility.
It’s possible that rationality tends to bias you away from your natural impassiveness to large groups and other “far” situations. There’s a post on this, “Shut up and divide”. But there do seem to be genuine biases leading to underestimates of their suffering, not just knowing about it and not caring.
Do they, or does their bias just change?
In my experience, people value themselves vastly more than they value other people. Ergo, if you replace them with someone else, they consider it a huge loss in utility.
It’s possible that rationality tends to bias you away from your natural impassiveness to large groups and other “far” situations. There’s a post on this, “Shut up and divide”. But there do seem to be genuine biases leading to underestimates of their suffering, not just knowing about it and not caring.