The comparisons you chose are terrible. We don't have widespread autonomous vehicles. Rockets are complicated but primarily constrained by knowable physics prob

The comparisons you chose are terrible. We don't have widespread autonomous vehicles. Rockets are complicated but primarily constrained by knowable physics problems. Social media sites are entirely digital systems that do not need to deal with the complexity of the real world and, where they do (like networking connections), they're built on abstractions to manage that complexity. Logistics problems, especially the logistics of moving humans, are both complicated and complex. You are talking about systems which must interact with manual, human-in-the-loop processes every step of the way. The feedback loops between the digital systems and physical systems are often loose and very costly to tighten (regulations, union rules, passenger behaviors) and the underlying systems that all participants must interact with were some of the very first widespread digital systems. Today's problem was probably preventable, but don't underestimate how hard the problems become as soon as a system begins to depend on humans and the real world.