I thought how man has made his life comfort. His inventions are thought to be superb as no comparision is there in universe except inovative thoughts of comparision.
I first thought how man emerged in getting inovating things to travel on different medium. Now I wonder why man did not thought of inovation in this manner.
To move in water with steam boat we require diseal as resource.
To move in air with airoplane we require petrol as resource.
To move on earth on a road we require diseal, petrol resource.
It could be something like this,
To move in water with a boat requirement should be water as resource.
To move in air with airoplane requirement should be air as resource.
To move on earth on the soil/sand requirement should be soil/sand as resource.
Now I think inovation are done without any constrants in using the resource. Hence the most inovative could cost more in long run. I agree inovating things should not be in constraint as it would lead thought process become narrow.