The Veil of Ignorance — John Rawls’ theory of how to make the best moral judgments — is a phenomenal tool for thinking deeply about which choices are best for society as a whole, and not just for ourselves:

• Would you choose it if you were in the other guy’s shoes?
  • Essential concept of fairness, akin to “do unto others”
  • Similarity to the Golden Rule
  • Akin to parable about the best way to cut a cake: the person who cuts it chooses the last slice. In this way they are incentivized to divide the dessert equally, lest they end up with the smallest piece.
  • Would Peter Thiel still think apartheid were so awesome if he were a black man?