A Physicist Answers the Grandest Question of All: Why Are We Here?

Perhaps the most fundamental philosophical question that you can ask in science is: "Why are we here?"

To understand the universe, we have to bring together the two key ideas that are governing modern physics. On the one hand, we have Einstein’s theory of relativity . . . On the other hand, we have quantum theory. View the video at Business Insider as Robbert Dijkgraaf, Institute Director and Leon Levy Professor, explores how the small differences in theories about space and time might explain why life just happened to happen.