“The problem with the MK1 stuff was that I didn’t have my eye fully on the ball, because I was still taking care of a lot of Tesla stuff,” Musk said. “Now Tesla, I think, is in a good situation here, so that’s why I’m pretty much camped out in Boca. The MK1 was a failure not because the rocket failed at low pressure, but because we failed to build a production line.”

Now he has built the production system. It’s not finished. It’s not perfect. But it’s starting to pay dividends. The factory is beginning to flow linearly, from one station to another. And after last week’s flurry of hiring, the company has the workers it needs to produce rockets one after another.

“If you’re just trying to make one of something, it can all basically just be made by the engineering team,” he said. “But if you want to actually make something at reasonable volume, you have to build the machine that makes the machine, which mathematically is going to be vastly more complicated than the machine itself. The thing that makes the machine is not going to be simpler than the machine. It’s going to be much more complicated by a lot. Things need to be translated into instructions that the average person can understand. You can’t have somebody with an engineering master’s degree from MIT hand-making every single part. It’s not possible. There just aren’t enough. MIT’s not graduating enough people.”