Now that the season is over and we have....most of the information we have wanted since the first episode, we can start to piece things together. However, is this multiple timelines or one timeline constantly changing?
The fact that they were afraid Deke might go poof lends to a single timeline.
So, if we take the timeline of the agents that we know....it was obvious that Talbot was going to be the one to tear apart the Earth. However, since he was going to absorb Quake, did he need her power to do it?
Since Yo-Yo warns the Yo-Yo we know in the future, then that Yo-Yo has already been through the events we saw leading up to Talbot failing and survives to 2091. She speaks of the loop, so she had already been to the future and then gone back since she is the seer Kassius has.
Now, does this mean there is a version of the timeline where the agents are unaware of the impending destruction, where it happens for the first time? How did it happen in that first version of the timeline?
Would you say their knowledge of the Earth's destruction is what led to Talbot getting in the machine? Did Ruby get in the machine originally and cause it the first time? I'm positive the introduction of time travel to the mix is what caused Ruby, Strucker and Hale's death.
Now, this also poses more questions of this "first timeline." How did everyone get to the lighthouse? There had to be a "first version of the timeline" where the destruction caught everyone by surprise.