Techno-utopianism requires a new & different Awesome New Technologies every few years - once people start to realize that the previous ANT ain't gonna take us to the Promised Land after all. Just like the previoius ANT didn't, and the one before that didn't, and the one before...

On the bright side - at least they aren't trying to sell us on the idea of nuclear-powered cars, or commuting via rocket-belt anymore.