Great link. Thanks!
I hope the optimism that such visions represented have not been entirely replaced by the fashionable dystopian views of recent years.
Some visions are more complex. I recommend a comic book series called "Transmetropolitan." While at first reading it's a typical sleazy negative future, the underlying background is also of a future where material goods are cheap and plentiful, the energy crisis has been resolved (by solar farms on Mercury[!]), and nanotechnology is widely used.