We Never Know
No Slack
I never said that. Wow, strawmanning me too. You're on a roll.
Empathy. Humans have empathy. One way we determine what is wrong vs right is by utilising, or not, empathy. Sometimes we don't have a choice in the matter. For instance, kittens. As an observation, we tend to empathise more with beings that are more like us. Mammals are more like us.
Huh? Efficiency = rights?
Do all animals have the same rights?
Why only empathy for only certain animals and not others. We are all just animals of nature.
I didn't say efficiency = rights. I simply said other species do earth and other animals better than us.