Well, I'm personally hoping stem cells pull through for corneal tissue regrowth. I've got significant scarring in one eye. I'd rather not get a donor (cadaver) cornea sewn on if it's avoidable but we'll see.

I think they're making progress.

The liver is an exception here - you can grow back a lot of it.

Eh? They can grow skin cultures that are good enough to help burn victims. Not, like, with all the pores and follicles being there, but it is skin…