"Hey, I lived it, and sometimes I still don't know what the hell's going on," Jim says with a shrug and a small smile of apology. It's at least partly his fault for not being clear. But his smile falters a little as he says, "We don't know if the wormhole only goes one way, but he didn't have a way to make another one. And with the future changed, we don't know if the one he came from even exists anymore. But he's doing good work, from what I hear. He's helping set up a new Vulcan colony."