> The further we go, the less real pain is, simply because our brain can't process and mirror it. But from an ethical perspective, the pain of a random person

> The further we go, the less real pain is, simply because our brain can't process and mirror it. But from an ethical perspective, the pain of a random person is just as important, right? > Animals look a bit like us and show similar pain reaction so we can emphasize somehow. But for everything after plants, we are getting too far. Animals don't just show similar pain reactions - the biochemical pathways are the exact same. For me, I have to assume basic physical pain is nearly the same, at least for mammals. For plants I don't know. It's possible they have some pain, but I'd expect it to be very different and lesser. For computers I see no reason to think there's any physical pain (though perhaps in the future)