Vox has a very good long-read about whether the IT advances of the last three decades pale in comparison to the technological advances of the 19th and 20th centuries.
The point/counterpoint article hinges around a central question: have all the technological advances relative to communication and IT software lead to an uptick in economic productivity? The answer isn't simple and--as the article goes at length to show--it depends on the metrics you use.
I err on the side of cautious optimism, however, I think that even though enterprise and consumer technology will continue to become more affordable, baseline economic disparities will remain extreme or become worse.
Read the whole thing.
As an interesting aside, the first figure quoted is the controversial figure of the moment, Peter Thiel, who has been exposed as the figure who funded Hulk Hogan's legal case against Gawker. His insights into this issue are interesting. But in a far different way than his vendetta against Nick Denton & Co.