I've not seen the video yet, but my concerns about the future of our society lie in a slightly different direction. As Americans, we (societally speaking, I know this doesn't apply as much to most of us readings these forums) rely on technology and the status quo to a greater degree than any other civilization in the history of the world. I've read that 80% of the US population lives in or around cities- that means that four out of five of us live in a "food desert" where practically nothing of value is grown. We rely instead on food being harvested, processed, stored, and transported to us. On top of the technological requirements (trucks, communications, etc) to keep this running effectively are the human requirements. A major disruption anywhere along the line could easily hobble the system. This is also true for most utility systems, such as power, water, and communications.
What makes this really concerning, though, is the threat of disease. The Plagues had a mortality rate of around 40% (I believe, it's been a while since I read anything about it), while HIV/AIDS is closer to 95%. What saves us is the relatively low communicability of HIV. Compared to this, the H1N1 Flu was highly contagious, but had a very low mortality rate. If we were faced with a major epidemic that incapacitated or killed at a rate of 25-30% (relatively low, compared with past plagues, and some current epidemics) and was highly contagious, our society would crumble pretty quickly. Consider how understaffed most emergency services currently are- if your hospital's staff was suddenly cut by 25% (due to the illness) and simultaneously had to deal with an influx of thousands (or tens of thousands, or more) of new disease cases, the system would essentially stop. It would be a similar story for our Police and Fire forces.
When the system is badly disrupted, services will stop flowing to the metropolitan areas, and chaos will ensue. Remember Katrina? Imagine if there had been no evacuations beforehand, and no military, Red Cross, or other aid organizations able to step in...
To make matters worse, our current CAFO system, which pens hundreds of thousands of animals together and continually pumps them full of powerful antibiotics, is literally the ideal breeding ground for highly contagious and medicine-resistant diseases.
Anyway, sorry for the long post, I'll get off my soapbox now.