Almost 50 years ago, the first commercial supersonic jet was introduced into the world, revolutionizing air travel and opening a new chapter in the way people flew. Flying at 2 times the speed of sound and faster than the spin of the Earth, Concorde was a peak of innovation in aviation, and it allowed people to travel across the Atlantic Ocean in just 3 hours. Today, however, the time of flight for the same distance is double. In this sense, aviation seems to have taken a step backwards since the Concorde. If no level of innovation could match that of the Concorde, then why exactly was it retired?