Man, a good friend of mine back home keeps forwarding me stem cell info and proven case studies where people who lost a finger for example like the thing got cut off are going to Mexico for stem cell procedures and the things are growing back.
A decade or so ago I might've approached stem cells like a 24 hr gas station in downtown LA at 3am—wait for the next one. Today, however, I'm looking at'em like glad they ain't built that wall yet.