One author's mostly optimistic prediction of the ideas that will come to define our collective future. Nicely done.

Open Source: This is a term that most people are familiar with, but it’s worth re-stating. The open source revolution, where information is freely distributed and editable, is already reshaping a number of industries and upsetting traditional economic and intellectual property models. Wikipedia has very quickly become the world’s largest repository of encyclopedic information. Linux and other open source software continue to rival the big players. And looking further down the line, there’s the potential for open source science, culture, and the disturbing potential for open source warfare.

our galaxy should be saturated with advanced civilizations and megaprojects by now

OK, who wants to start a megaproject called Clipmarks?