Days of Past to Come

I was sitting around yesterday in a slightly altered state, watching DC’s Legends of Tomorrow. As with most shows that deal with time travel, they try to make sure that crucial events that occurred in the past continue to occur, despite their presence and meddling, while trying to not alter other events too much. The common theory is that a change will activate a time paradox, or butterfly effect, and create a parallel timeline where future things are not the same as it was when they left.

But what if it doesn’t only work that one way? If time travel were achievable, what if events that are changed in the future actually change the past? Forgive me if this is not a new theory, but its one that I’ve never heard, so its new to me, and thats all I can go on.

Courtesy of NASA,

My theory goes like this: if you travel to the past and change something, you create an alternate timeline leading to a different future. But if you travel to the future and change something significant, you create an alternate past that aligns events differently so that the alternate future can exist. For example: say you were able to go one day into the future, somehow hack into the US nuclear arsenal and were able to drop a nuke on North Korea. The past would then have to change itself in order to make that event feasible, so that some events that have occurred in real life never did in the new past, and other that never transpired will have to occur. Maybe in this alternate past, instead of Trump being the upset winner, it was Steve Bannon, who could probably be much easier persuaded to authorize the use of a nuke on an enemy. Maybe that is the only chain of events that could possibly allow such a future outcome.

I like the idea that the future is not set, but neither is the past. After all, if time is a spiral, where you come back to same point over and over but only further in Z space, why cant it be closer along that same Z axis? How can we prove that the events of the past aren’t forever changing to allow for an infinite number of possible futures? I’m not smart enough to say that something like this is possible, but I am smart enough to know that I don’t know anything, and so therefore anything could be possible.