At one point in time, 'Explorer' was a legitimate and widespread profession. We were born too early or too late for this privilege, in the physical sense.
There are many long gone job titles.
Prior to the invention of the mechanical time pieces, and the need to coordinate time, we operated by the rhythms of nature and a decentralized notion of what "now" meant.
Previous generations, needed to memorize phone numbers, addresses, dewey decimal systems, not to mention non-electric versions of power tools and machines.