AI compute, energy and AI in space
- Q24 Why put AI in space?
Space lets you harness far more of the sun than Earth can; that energy goes into digital intelligence, which he calls creating a sentient sun.
- Q38 What is the limiting factor for AI scaling?
He cited a consensus estimate of at least a 15 GW power shortfall for AI chips in 2027.
- Q48 Why did SpaceX acquire Cursor?
A useful AI has to solve coding, and only a few groups (Anthropic, OpenAI, Cursor, maybe Google) had enough coding training data, plus Cursor had talent and an enterprise sales team.
- Q49 Why is Tesla building a chip fab?
He said the Terafab costs tens of billions and real production would come in late 2028, which is very fast for a fab.
- Q51 What is the Kardashev scale / the big picture for civilization?
He treats energy harnessed as the most objective score of a civilization: type I a planet, type II a star, type III a galaxy. Earth is still very low on the Kardashev I scale and harnesses almost none of the Sun.
- Q52 How much solar would it take to power the United States?
Roughly 100 miles by 100 miles (160 km by 160 km) of solar could power the entire US — a small corner of Utah/Nevada/New Mexico — and a small part of Spain and Sicily could power Europe.
- Q53 What's your vision for energy abundance?
While talking about the future being decided by AI, robots, and rockets, he said civilization will need more energy, primarily solar, and that he is increasing solar dramatically: putting together 200 gigawatts a year of solar production capacity in the US, which he thinks is much more than currently exists.
- Q121 Should governments put a price on carbon?
He said the only way to do that is basically with a carbon tax.
- Q123 How much AI compute will SpaceX bring online?
He said he is confident SpaceX will get to 10 million tons to orbit per year.
- Q133 Can the world solve its water problems?
He said many people think the water crisis is unsolvable, but it is in fact very solvable.