[eudox]

>Or for 3d printing. etc

There's The Diamond Age, which is moderately optimistic, and other molecular nanotechnology-related fiction.

[gte910h]

But was written 20 years ago. Certainly within memory of many readers who'd be alive today, but certainly missing many important themes that could be explored to extrapolate from today.

[pixelcloud]

The Diamond Age also predicted Bitcoins to a certain extent. Its a great book.