" Suppose you woke up one morning to discover that you were the last person on earth. [...] In the situation described, you could satisfy many material desires that you can't satisfy in our actual world. You could have the car of your dreams. You could even have a showroom full of expensive cars. You could have the house of your dreams - or live in a palace. You could wear very expensive clothes. You could acquire not just a big diamond ring but the Hope Diamond itself. The interesting question is this: without people around, would you still want these things? "

― William B. Irvine , On Desire: Why We Want What We Want