Earlier quoted context omitted.
1.4 million is an exceptionally small number of people compared to the size of the oceans. You could fit all 7+ billion humans in New Zealand if we all lived as densely as Manhattan. [1] So 1.4 million people on the oceans is still virtually empty overall. Think about it this way. There are 3.2 million Mongolians and Mongolia is quite large -- thus, Mongolia is extremely empty. There are less than half as many seafar…
I'm just trying to imagine a city the size of New Zealand, Australia devoted to agriculture and the rest of the planet devoted to nature. That would be quite a statement with respect to stewardship of the planet.
New Zealand is very mountainous and subject to earthquakes and volcanos. Australia is half desert.
I wonder what the best location to concentrate the world's population and agriculture actually would be. My guess would be North America, India, or China.