Elon Musk on building a self-growing city on the Moon：

"You don't necessarily have to go through the moon to get to Mars. We can build a self-growing city on the moon faster than we could do so on Mars， and there's also the potential， if you say you want to scale far beyond what you can do from Earth， is that because the moon has no atmosphere and about 1/6 Earth's gravity， you can use an electromagnetic accelerator， a rail gun or mass driver， basically you don't need to use rockets to do AI data centers into deep space from the moon， you can literally just shoot them like a， like a rail gun type of thing， and and you can manufacture the solar， the solar and the radiators， solar power and radiators on the moon from moon materials that would allow scaling potentially to beyond 1000 terawatts a year， which is a truly staggering number. I think we can do probably do somewhere around one terawatt per year of AI space compute from Earth， but we can do 1000 terawatts or more from the moon."