Back pain sucks; AI could provide the answer to it.
Elon: "So, if you've got humanoid robots that have very high dexterity and are incredibly smart, it means that everyone on Earth will have access to better medical care than the richest person on Earth, which I had to have neck surgery three times because the first two ones were done wrong. You know, can AI please solve back pain? That would be a huge win, and I think it will.