In other areas of our lives, we have clearly defined norms we regard as 'correct.' For example, when you share big news with someone, an immediate congratulations is generally expected, while a delayed response may seem rude.

In a 24/7 digital world, not everyone agrees on norms. When people get annoyed by a non-response, they may project their own norms or rules onto others as if their standards are universal.

Message-senders expect immediate replies. They may get annoyed and ride an emotional roller coaster when a message isn't immediately answered. 'Maybe something bad happened.' 'Maybe he's mad at me.'

The sender may wonder why they can't just respond with a busy now, talk later. Thes...