Think about how many highly specialized jobs are needed to run modern-day society. Think about how much of the required knowledge and skill to do those jobs wou

Think about how many highly specialized jobs are needed to run modern-day society. Think about how much of the required knowledge and skill to do those jobs would be lost, not to mention available person-hours. We could be set back a century or more, but without the cheap and plentiful natural resources that got us to where we are today.