[$] Brian Kernighan on the origins of Unix

Once again, the COVID pandemic has forced linux.conf.au to go virtual, thus
depriving your editor of a couple of 24-hour, economy-class, middle-seat
experiences. This naturally leads to a set of mixed feelings. LCA has
always put a priority on interesting keynote talks, and that has carried
over into the online event; the opening keynote for LCA 2022 was given by
Brian Kernighan. Despite being seen as a founder of our community,
Kernighan is rarely seen at Linux events; he used his LCA keynote to
reminisce for a while on where Unix came from and what its legacy is.