

Oh my god people. This is just a tongue in cheek joke about the ridiculousness of the two comments above me. The first one is either completely made up or pretty much unverifiable if true. The second one is an unreasonable request if the first comment was true because it would obviously endanger the source. It was meant as a test for whether the first comment was telling the truth but it’s completely failing at doing that.
Comfort noise really surprised me when I learned about it regarding phones. We register it as silence but we also register the line as active whereas we immediately notice complete silence. Brains are cool stuff