" The literary critic Harry Levin put this nicely: “The habit of equating one’s age with the apogee of civilization, one’s town with the hub of the universe, one’s horizons with the limits of human awareness, is paradoxically widespread.” At best, we nurture the fantasy that knowledge is always cumulative and therefore concede that future eras will know more than we do. But we ignore or resist the fact that knowledge collapses as often as it accretes, that our own most cherished beliefs might appear patently false to posterity. "

― John Brockman , This Will Make You Smarter: New Scientific Concepts to Improve Your Thinking