Authors:

It's important that we attempt to extend life beyond Earth now. It is the first time in the four billion-year history of Earth that it's been possible, and that window could be open for a long time - hopefully it is - or it could be open for a short time. We should err on the side of caution and do something now.

"Uberpreneurs: How to Create Innovative Global Businesses and Transform Human Societies". Book by Peter Andrews and Fiona Wood, December 8, 2013.
It's important that we attempt to extend life beyond Earth now. It is the first time in the four billion-year history of Earth that it's been possible, and that window could be open for a long time - hopefully it is -