Good catch about Jacob. Didn't even think of that--he's not in the absolute present, but maybe that doesn't matter, since he's Wrong anyhow. Maybe he's a possible Past entity that must be stopped, not Future. And anyway, maybe it's not his birth that's the problem. Maybe it's his climbing up into the statue control chamber and flying into the sun and drinking it like Powerade and maneuvering the stars into spelling the numbers and drinking the blood of the unborn.