This reply is perfect. The anger encapsulated in it captures the exact crux of the post. The point, of course, is that advances in personal technology have coincided with a cultural shift where people feel entitled to personal isolation in public spaces.

When I moved to NYC 30 years ago, one of the things that made me fall in love with the city was the way that living in such close proximity to so many others seemed to create so much more empathy. The same effect, I now see working in reverse, minimizing contact with others with by disappearing into technology has the effect of making people less empathetic. Instead of reaching into their pocket for a subway performance, or a homeless person, people might prefer to see them arrested for the crime of violating their all important personal barriers.