If you are interested, Peter Thiel's 0 to 1 has more on this and with more depth. As he says, we are the "indefinite optimists", expecting the future to become

If you are interested, Peter Thiel's 0 to 1 has more on this and with more depth. As he says, we are the "indefinite optimists", expecting the future to become better somehow, rather than "definite optimists" that expect to build the better future.