Just happened to comment that there was no business model for small groups or colonies on Mars; that's unchanged and cannot change.
Well, he wants the company doing the business of moving cargo and passengers to and from Mars. Perhaps ....
Lot of hype, no business model for Mars.
By the way, something that should be obvious but apparently is not. Going to Mars is eight months in a SPACECRAFT, and that's one way. Musk is not building spacecraft. He is building launch rockets...
The spacecraft that could possibly do Mars is variants of the Constellation / Orion NASA project.
You are wrong. There is a spacecraft planned, its what goes on top of the
In this CGI picture the launch vehicle "Super Heavy" is returning back to earth while the spacecraft "Starship" goes to an earth orbit to refuel with a similar shaped (but fuel only) vessel; to then carry on with its mission carrying people and cargo.
Here is the official site of their plans: https://www.spacex.com/mars
And here are more details of the spacecraft: http://spaceflight101.com/spx/its-spaceship/