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Yes I thought something similar. Basically, whenever Musk announces anything, I ask myself “how does this relate to Mars?”

Mostly it’s pretty obvious. Tunnel boring machines to dig hyperloop tunnels to take passengers from the starship spaceport to the nearest city on Mars? Check. (Why isn’t he building hyperloops himself? No need to create a vacuum on Mars… but the vehicle research will be interesting)

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Tunnels are one of the most important things you could build on any planet or satellite like the moon.

Remember there is no atmosphere nor magnetic fields on other planets to protect you from cosmic rays, so a good solution is make people live underground.

Some time ago a teacher offered me to make my Master thesis on that(I did not take it) because there were people already working on this problem.

BTW, places like the moon are very interesting. Because there is no fluid erosion every single grain of sand is extremely abrasive.

Tesla is an infrastructure company. He’s building infrastructural components for Mars as much as Earth, for sure.

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