Ever use an ATM? I am old enough to remember when, if you needed cash (and who did not), you went to the bank and stood on line with a personal check made out to cash. If you were really unfortunate you could be left cashless for the weekend, or in search of a friendly grocer who would cash your personal check.
We are living in an age of science fiction -- humans are overcoming the limitations of our brains while machines are acquiring superhuman capabilities. The most exciting technologies combine what humans do best with what machines do best. But it is premature to think we have overcome every challenge. Here's how we can prepare for the second machine age.