Sam’s explanation of free will is compelling and difficult to argue against. The way we feel about it reveals something about us. He cites examples of people who found comfort in the idea of an absence of free will but also people who are terrified of the idea. Meanwhile, the universe hasn’t apparently changed. The more I think about this stuff, the more I come to believe that we construct the world in our imaginations and fit the data to that model, not the other way round. We see what we want to see.