Once a huge champion of all things digital, I’ve come to develop serious doubts about the pace at which humanity made the switch from analog to the cloud. The hackings, outages, data breaches, and extended breakages all make the point. But the danger is even greater. Most of the things we use today have not been stress tested. They are centralized and have a single point of failure. And they are very vulnerable. It could all stop in an instant with no sure guarantee of when it will come back.