Computers were programmed to swap out error-prone, inconsistent human calculation with digital perfection.

Work is really wrapped up with identity. Work is not just money for most people.

In 1986, the space shuttle Challenger exploded and crashed down to Earth less than two minutes after takeoff. The cause of that crash, it turned out, was an inexpensive rubber O-ring in the booster rocket that had frozen on the launchpad the night before and failed catastrophically moments after takeoff.