I saw this segment on YouTube, in which #Fridman interviewed #Kernighan about his #programming setup. For an instant, I was surprised to learn that Fridman hadn't heard of #UNIX \(\texttt{ed}\), but then I realised....
In my view, a luminary like Kernighan, from a certain era, should be interviewed by someone who wouldn't be stunned when hearing once-common names like \(\texttt{ed}\) or \(\texttt{ex}\) or \(\texttt{dc}\) or \(\texttt{adb}\), but would smoothly inject a brief historical description thereof, and glide on with the main point of the interview. But that 1970s/1980s #geek generation avoids the YouTube selfie camera like the plague.