Why is he so annoyingly technical?

He's a know-it-all and says facts when there's no need for them. A girl in my class said that she loves listening to the rain when sleeping. Just a casual convo, nothing serious. This guy chimed in with, "Ironically, we purposely tune out white noise when we're awake but find it relaxing when we're asleep." Dude, learn how to talk to people. He says things like this all the time. Stop being so damn technical like a robot. Learn how to talk casually.
Why is he so annoyingly technical?
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