The current world shares many similarities with the world of the 1990s. In particular with regards to heavy industries, manufacturing methods, and factories, while there has been a marginal increase in automation in some countries. The same can be said for transportation, as the cars, planes, and trains we currently use have seen little innovation in the past three decades. The most commonly used airplanes in the world, such as the Airbus A320, date back to the 90s. Performance-wise, for example, airplanes have ceased to improve their speed since the 1970s, due to the fiatisation of the economy. As energy costs have become increasingly expensive, as seen in the 1972 oil crisis, innovation efforts have primarily focused on energy efficiency. The main difference between the Airbus A330 and A330neo is a 12% to 15% reduction in fuel consumption rather than improvement in the aircraft velocity, passengers capacity, etc.
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