RIP the man who was the absolute incarnation of XKCD's "one random dude holding up the entire internet". You may never have heard of David Mills, but your entire goddamn world depends on what he did.

https://en.m.wikipedia.org/wiki/David_L._Mills

David L. Mills - Wikipedia

@memory dave could tell you the temperature in your machine room from the rate of change of clock skew from his fuzzball NTP servers...crazy cool tinkerer