Earlier, we saw a meme that shows how introverts read text messages. They look at the message in the notifications bar. However, some introverts really can’t be bothered to read or listen to a thing anyone else has to say. At least, not until they’ve fully recharged their batteries.
The recharging process usually takes one to two weeks, but some people will go radio-silent for months on end. You’d like to send the police over for a welfare check, but you know that’s just a waste of resources. They’ve probably been playing WoW since the last time you saw them.