I just finished watching Elon Musk unveils Mars colonization plan, and it is one of the most impressive things I have seen.
As the man explained, there is a list of technical challenges that must be overcome, but progress so far has been promising. Establishing self-sustaining colony on Mars could be done in our lifetime.
Date: 27 September 2016
Elon Musk is 45 years old
Why start with Mars? It is easiest to go from the 3rd rock to the 4th, and conditions are workable.
Here is the 4-points-plan to bring down the cost-per-passenger by 50,000 times. He went into details on each of these.
there are windows to make the vogage every 26 months (due to mars and earth orbits), and trips last an average of 4 months. That is longer that it used to take us across the Atlantic by boat, but manageable.
SpaceX’s 1-2 years iteration, like rockets are mobile phones