"A century ago, there would be a battle that wiped out the next village, you'd never even hear about it."
Huh? Maybe in the remote parts of Africa or some other place that was still stuck in the stone age. Maybe. In the parts of the worlds actually living in the (early) 20th century not so much.
""We're only crowded because we've crowded ourselves into cities. Try taking a train trip across the United States, or Europe or Asia or anywhere in the world. Ninety-nine percent of the land is not used... we don't want to use it because you don't want to be out in the boondocks if you don't have people to work and play with. That's already changing now that we have some level of virtual communication..."
Not in the US, or most of Europe, or a good chunk of Asia. Not used for housing or urban sprawl isn't the same as not used. And no, it's actually changing much - communication isn't the only issue, access to stuff (physical goods) is also important, as is access to experiences. And neither have markedly changed if you live in the actual boondocks. (I find most people who live in big cities have little idea what conditions are like outside of the metro area.)
When will computer geeks grasp that most of the human race actually enjoys the company of others and that there are actual economic reasons why people cluster?