The bearable likeness of being

摘要

I am unique. I don't mean to be boastful, but I am. And so are you. Or possibly not. What if you are an identical twin? Are you unique, or are you one of two copies? This issue, argues Pierre Baldi in The Shattered Self, will soon be as challenging to our notion of self-importance as was Galileo's insistence that the Earth isn't the centre of all things, or Darwin's demonstration that we are just a minuscule twig on the evolutionary tree.