Perhaps too late to comment - but I think it's just population density being too high. There's only so much presence of others that you can take without getting tired of it. Just having people around is communication of its own.
That much anyone can figure, and my point is, that threshold of sustainable density can be way lower than commonly thought. We're just too used to it, like we're used to burning fossil fuel. There might be a "peak density", hopefully after population growth resumed on the high orbit and beyond.
That much anyone can figure, and my point is, that threshold of sustainable density can be way lower than commonly thought. We're just too used to it, like we're used to burning fossil fuel. There might be a "peak density", hopefully after population growth resumed on the high orbit and beyond.