> if you compare Earth today, in terms of "carrying capacity for human beings", or "utils generated per day" or some other metric you like, vs pre-human Earth,

> if you compare Earth today, in terms of "carrying capacity for human beings", or "utils generated per day" or some other metric you like, vs pre-human Earth, I don't think it's a close contest. Maybe let's turn down the optimization on a single metric before we're all turned into paper clips.