I get the same feeling. It seems unusually hard to come up with an idea for how things will be like after ten or so years that don't sound either head-in-the-sand denial of the technological change or crazy.

You know, that's a good description of my reaction to reading Brin's Existence the other day. I think 10 years is not that revolutionary, but at 50+ years, the dichotomy is getting pretty bad.