This is the foundation of a lot of John Rawls’ philosophy... he calls it the ‘original position’ or the ‘veil of ignorance’... the idea is to try to imagine, when thinking about social systems, that you have no idea which person you will be in that system. You might be the richest person or the poorest person, you might have your side in power or your opponents side in power.

If you had no idea who is filling what role, would you agree to the system proposed?