I have this feeling that all of Musk's comnpanies are technology development ventures intended to support his primary goal of getting humans to live off-earth.

I have this feeling that all of Musk's comnpanies are technology development ventures intended to support his primary goal of getting humans to live off-earth. Note: I am not defending his goal, or idolizing him. But consider: boring company: finance learning about tunnel construction; tunnels needed on moon or mars for habitation; solar cells: very useful on moon or mars; hyperloop: finance learning about vacuum seals and related technology. My explanation makes much more sense for each of these than the ostensible goal of the company. which brings me to the point in Cthulhu's post: tesla is selling cars to understand the techne of energy storage for use in space habs.