Comment on This automatic faucet that need the hands to be between the wall and the water to turn on.
shalafi@lemmy.world 6 months agoI learned it working telecom. For example, if you wish to offer 911 service, your service has to be operational 99.999% of the time.
It’s more casually used to mean a service or operation is insanely reliable.
bolexforsoup@lemmy.blahaj.zone 6 months ago
Right makes sense! I like it haha