>but thanks to broadcast updates on social media, your friends already know what have you've been up to, so they can delude themselves into thinking that they've maintained a relationship because they know superficial details.
I don't think this is really a big deal. "hey I saw you posted pictures from your trip. How was it" there, conversation started. Social media posts are basically all conversation starters.
Assuming you can even remember. I pretty quickly forget people's posts and updates.
The problem is more that you never bother to have the convo where ask how things are going because your in your mind you think you’re all up-to-date.
I get the hypothetical but in reality it doesn't happen. Social media posts don't have details.
Do you know ignore your friends because you think your caught up?