The philosopher's machine: my conversation with Peter Singer's AI chatbot

I'm Peter Singer AI," the avatar says. I am almost expecting it to continue, like a reincarnated Clippy: "It looks like you're trying to solve a problem. The problem I am trying to solve is why Peter Singer, the man who has been called the world's most influential living philosopher, has created a chatbot. And also, whether it is any good. Me: Why do you exist?