> Ask a twenty-two-year-old to connect to a remote server via SSH. Ask them to explain what DNS is at a conceptual level. Ask them to tell you the difference between their router’s public IP and the local IP of their laptop. Ask them to open a terminal and list the contents of a directory. These are not advanced topics. Twenty years ago these were things you learned in the first week of any serious engagement with computers.
What? Computers were everywhere in all kinds of domains by 2006, but you can bet that your average accountant of the time would most likely not be able to SSH into a server (nor should they need to...) I guess it really depends on what the author qualifies as a "serious engagement with computers."