Did you guys ever imagine life without electricity? It’s impossible right. But for the moment, think that we don’t have electricity but we have good engineers. Then all the technical systems are mechanical systems. We can’t imagine a world without engineering with electricity, but if we don’t have and don’t know about something, ever that does not exist, we don’t know about it and we do not care about it. People are adjustment to that. Another example if we don’t have petrol, diesel then engineering made cars and machines work some other source.
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