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What if could read car-plates + allow /deny opening garage for deliveries in absence /daily access ,combined with face-identification ?
What if invent a automatic spectacles it helps when u in sunlight ,moonlight glass layer changes by using a sensors.
What if the security agent will ride a bike to reach a protected site ? Will save a lot's of time in the large city's traffic.
What if cameras could also sense environmental changes eg increased humidity might mean a water leak, very cold - heating not working