Elon_Musk has kept expanding and diversifying over the years. Colonizing-Mars is just one of his many technology goals.
https://en.wikipedia.org/wiki/Elon_Musk#Business_career
Elon Musk's Question to AI: What's Outside The Simulation? https://www.youtube.com/watch?v=lK0q812bAK0
Is life a video game? | Elon Musk | Code Conference 2016 https://www.youtube.com/watch?v=2KK_kzrJPS8
Why Quantum Computers Will Break Reality https://www.youtube.com/watch?v=J-MG8a0J0bk
