I Am a Strange Loop, by Hofstadter. I thought his idea of consciousness as a gradient was really interesting. Hofstadter said this idea made him a vegan. It did

I Am a Strange Loop, by Hofstadter. I thought his idea of consciousness as a gradient was really interesting. Hofstadter said this idea made him a vegan. It did the opposite for me, eating a person has more or less the same moral perils as eating a cow. It didn't change my mind about eating animals, but eating people seems more or less okay.