Is it right to eat a pig that wants to be eaten?Are you really reading this book cover, or are you in a simulation? If God is all-powerful, could he create a square circle? Here are 100 of the most intriguing thought experiments from the history of philosophy and ideas - questions to leave you inspired, informed and scratching your head, dumbfounded. A collection of short, accessible philosophical quandaries to stimulate, challenge and entertain.