A technical snag in Microsoft systems today led to breakdown of processes in many airports, hospitals, super markets, and even stock exchanges across the world. This is being seen as the biggest technical outage that the world has seen in recent times. It was in many ways a day that reminded us of our increasing dependence on tech for very critical services, and the need to build systems that can handle such snags, and also have plans Bs, contingencies and faster workarounds for the future.