There is no way to go from the one to the other without flight
People have traveled the world for centuries before the Wright brothers devised the first plane. Boat and road are slower and less convenient but it’s still doable and have been done (think the old silk road). What I will agree with is that it’s often not… realistically feasible to do in our days and age but it’s still doable ;)
People have traveled the world for centuries before the Wright brothers devised the first plane. Boat and road are slower and less convenient but it’s still doable and have been done (think the old silk road). What I will agree with is that it’s often not… realistically feasible to do in our days and age but it’s still doable ;)
Hence the use of the word “viable” right at the start to set the stage.