Altman sees the problem, but is vague about what to do about it. He's right that this is a new thing. It's not "software", per se, it's automation in general. For almost all of human history, the big problem was making enough stuff. Until about 1900 or so, 80-90% of the workforce made stuff - agriculture, manufacturing, mining, and construction. That number went below 50% some time after WWII. It's continued to drop.…
I don't think it's possible to figure it out with the knowledge we have today. Just like 50 years ago no one would've predicted that "social media manager with knowledge of WordPress and Drupal" was a job. For what it's worth, US labor participation rate is still way above its historic lows http://en.wikipedia.org/wiki/File:US_Labor_Participation_Rat...
Doesn't that big climb in the 60s and 70s represent women's large-scale entry into the workforce?
I'm also thinking about the whole under-employment thing that's going on. There's too many people I know who are employed, but part-time or getting paid a lot less than they were in the past.