More analysis on Point #3 in this article was also covered by Paul Krugman (liberal economist columnist at the NY Times):

http://krugman.blogs.nytimes.com/2012/12/11/human-versus-phy...

http://krugman.blogs.nytimes.com/2012/12/10/technology-and-w...

Basically it's simple: as more wealth creation is driven by technology, the wealth shifts to whoever owns the technology or can operate it. Why is the payoff for founding a successful technology company so potentially lucrative? It's because you're basically both. If you think acqui-hires that pay something like $1 million per engineer is a lot, that's basically why.

In the US, we should have two political parties mitigating this by figuring out the balance between helping low-skilled workers become high-skilled (e.g. education funding and reform) versus making sure those unemployed low-skilled workers don't get sick and starve to death on the street in the meantime (e.g. unemployment and health insurance). Instead we have two political parties arguing to the death about whether or not to raise taxes by 4.9%.