Living in civilization often gives people an illusion that the necessities in life are easy to obtain. We expect to have access to clean water and electricity. When we need food, we simply pay a visit to the grocery store at the corner of the block. A garbage shoot in the building and a functioning sewer system also contribute to the convenience that we often take for granted.   However, any system can have problems from time to time. The power outage happened in New York City on July 13, 2019 is an unfortunate example. More than 70,000 people were trapped in the darkness for over 5 hours Saturday night.…