To begin with, homes are becoming smart. Especially after Covid, many of us are working from home. This has sprouted a huge market for smart widgets that make our homes comfy to live and save on energy at the same time. For example, smart thermostats, smart lights, smart switches, smart refrigerators, smart garage door openers, smart security cameras, smart locks, smart smoke detectors, smart TVs, smart entertainment systems, smart laundry machines, smart dish-washing machines, smart energy meters, smart water meters, smart gas meters, and so forth. You name it, we have it. These smart doohickeys are flooding the market for a reason. They save us energy and make our lives a lot easier in this stress filled professional world. The global smart home market is estimated to be about $70 billion and is expected to grow over $300 billion by 2025. Collaterally, smart homes are the building blocks of smart cities. Smart cities save tons of money to city administrations. They save on resources like power, gas, and water. Smart city governments are priding themselves in their excellent services to their citizens. Especially during Covid-19 epidemic, smart cities have responded very well to emergencies. The coordination between hospitals, ambulatory serves, and various other city services were impeccable. Smart hospitals that were overloaded with Covid patients managed their resources efficiently.