"It is light, casual, and easy. A while ago she [his sister] sent me a picture of a job offer, in that case, it is better to send it over Whatsapp, something that is not ephemeral. You want to look back on it. On that moment, it is not that important, you can take a look at it a few hours later. But if you send a useless selfie, that is fun at the moment. But, 3 or 4 hours later, it is not that interesting anymore. You are done with it."