Many modern modes of transportation, such as speed trains, trains, submarines, airplanes, space trains, unmanned vehicles, etc., will, I believe, be available in the future. But my favorite mode of transportation is the airplane since it is beautiful and environmentally friendly, and it can soar to the skies if there is too much traffic, allowing us to travel faster and without wasting time. It can also be used to take a tour of the sky. It's the ideal marriage of automobiles and planes. It has a disadvantage in that it is highly expensive, thus few people use it. If I ever have a lot of money, I'll buy one to take my family to the stars and other parts of the globe.