Me and my closest friend stay in near constant touch through text messages (whatsapp). We know we can call each other on phone any time of any day and the othe

Me and my closest friend stay in near constant touch through text messages (whatsapp). We know we can call each other on phone any time of any day and the other would nt mind one bit about their routine or focus being disturbed. Still we plan our calls a week in advance and only have calls once every few months. Part of the reason must be that async but near-instant communication afforded by messaging apps is enough for 90% of the needs. Of course this reduces the intimacy of having a real conversation but we are introverts anyway.