[xwdv]

Damn how did Elon Musk regrow that much hair?

[lossolo]

There are only two ways to fix what he had. First is a hair transplant, he would be around NW6 now so it was a lot of grafts. Second way is a hair system (rebranded toupee), you can't really tell if someone is wearing one if it's good, you can have exposed hairline, modern hair styles etc.

[gburdell3]

Hair transplants, most likely. They pull follicles from the back of your head and transplant them onto the temples and crown to fill in thin spots.

[remarkEon]

Money.