It's fiction. You can believe whatever you want about it. What's cool is if someone invents a time machine in fiction that makes it way into reality. And the one that really works.
Until it's discovered we can only speculate. I think I've proven lately it's more exciting when it involves a real person. At worst I'd write an outline myself in one fic in case Ben and FUS doesn't get around to a movie or something. I hope something happens.
At best, if I became a billioniare off my software company, I'd spend 10 million or so to make a SatAM movie just to get the issues off our hairs. If that's possible I owe it that much.
You'd need more than a time machine to travel to and from a work of fiction. Time machines would only take you to points in time within our own reality. You'd have to build some entirely different machine to force open a portal to a fictional world, supposing that doing so was possible. The main problem is that works of fiction are exempt from the laws of science, so it may never be possible for them to even exist outside of our minds. The loophole there, is that you may theoretically be able to build a machine that would allow you to enter the thoughts of another, or to hook up a person's mind to a machine that could produce items that they think about. I doubt that this would allow for possibilities like bringing stuff back from someone's mind, or creating lifeforms with such a machine... But if there was a means of compensating for all of the missing details that one doesn't have when thinking of these things, then they could be a very distant possibility. More likely, you'd just have the people with the technical knowledge doing stuff like building cars with them, though.
Projection: If Intruder Organsim reaches civilized areas...
Entire world population infected 2,7000 hours from first contact.