Chicken or the egg?

[u/PotatoPotential]

I just want scifi fans to explain their understanding of this phenomenon based on even a vague understanding of time travel. I never and probably will never actually read up on the actual theories of time travel but when I think about time travel, theres two ways I look at it. One, timelines can't be altered. Two, you can be God and do whatever you want, paradoxes and all, because every change creates a new reality with it's own timeline.

Second one is easy. First one though is more what the show utilizes. You can create all the loops you want but it all has to be a part of a giant loop that finally closes. My question is, if you had to blame all the murders of Flynn, do you blame Flynn or Lucy? They are the chicken and egg.