@whitequark @0xabad1dea I once heard an Elizabeth Zwicky sysadmin war story from the late 80s or early 90s about how SRI's (I think) Bay Area machine room overheated during a rare Bay Area freezing snap ... because the AC pipes ran outside on the roof and no one had insulated them because why would you need to in the Bay Area of all places. So the sysadmins had to run around opening doors and windows to let all the outside freezing cold air in to cool the place down enough.