According to Paul Gilding, independent writer, activist, and adviser on the sustainable economy, there are four words that will define this century: The Earth is Full.

Do you agree? Is it a crazy idea that we will someday expand onto further planets? As geeks I feel we’re the people who should believe in that dream more than anyone, but is it realistic? Should we be focusing more on reducing our footprints and demands on the planet?

Are we meant to be getting scared that the carbon bubble burst will mean a sort of social apocalypse? Are we in denial of the reality of the future we’re heading towards? Do we really need a crisis to start getting ourselves moving?

Or can we make this our finest hour?

[Via TED]