Back in the olden times when you wanted to send a message to someone you mailed them a letter. Remember those? Real pieces of paper which contained actual writing and were physically delivered to someone. Time progressed and advancements in technology gave us the ability to send messages electronically, there was FAX then email and SMS. All of these communication methods had two things in common: 1. They were decentralized and interoperable; that is to say anyone could send a message to anyone else with the right equipment, and 2. You were ultimately in control of the message history. In Continue Reading