Do You Think Time Travel Is Possible?

i am willing to say, and i do think that, that metaphysics will restrain the possibility space of scientific models. Right now, how much and to what degree is a very interesting question. I would bet heavily against it. But when it starts getting to the point where we've got models making predictions and stuff like that, that gets interesting. Even if it is possible, i hope nobody does it, because then we're screwed.