December 11, 2013
Despite your particular dream for humankind, without an indefinte time to develope said dream, it will not happen. It is becoming more and more apparent that some random Near Earth Object will no doubt bring another "great dying" to our world. Therefore I believe it imperative that we devote a great majority of our available resources to tracking NEO's and developing a foolproof method for diverting them.
In 2016, The Planetary Society’s LightSail program will take the technology a step further.