Circular reasoning? They solved the land-nav problem because its easier. Its easier because they solved it.
My point was, there is another wrinkle. The land-nav problem was opened up, made a competition with a big marketing budget. It was also intractable, unsolved, too hard. Until lots of smart people started brainstorming and trying crazy things and cooperating.
Airplanes can change speed drastically, which is at high speeds about as effective as stopping. And no, you don't get to say collisions are hard to avoid because 3 dimensions are hard to calculate, making that not a solution.
I think I begin to see why the problem hasn't been solved yet.
My point was, there is another wrinkle. The land-nav problem was opened up, made a competition with a big marketing budget. It was also intractable, unsolved, too hard. Until lots of smart people started brainstorming and trying crazy things and cooperating.
Airplanes can change speed drastically, which is at high speeds about as effective as stopping. And no, you don't get to say collisions are hard to avoid because 3 dimensions are hard to calculate, making that not a solution.
I think I begin to see why the problem hasn't been solved yet.