> Email and SMS aren't reliable, you've no way to know if they've been read. For me, ephemerality, one-shot, and unidirectionality are characteristics, not is

> Email and SMS aren't reliable, you've no way to know if they've been read. For me, ephemerality, one-shot, and unidirectionality are characteristics, not issues. > SMS is unencrypted so someone's harvesting your data. There is not a single entity that is getting all of it, which is the most important to me. Encryption is nice, but for most of my communications, that's not the most important feature. > They require a cell tower connection, that's only 1 step away from an internet connection, probably 0 in many cases. I'm regularly in situations where the phone works, but not internet. On the move, or in the country side. > Cash and Phone numbers are trivial to steal. Sure, and so is a bike. But I don't always want to take the bus.