The video is a survey from the advent of man to the invention of the computer mouse and what it all means. Highly entertaining and well worth your time.
And just today Instapundit linked to an article exactly illustrates the concepts discussed in the video: Progress on Alzheimer’s.
And should you wish to delve further Matt Ridley has written a book:
The Rational Optimist: How Prosperity Evolves
H/T to Bishop Hill for the video.
Cross Posted at Classical Values