My main beef with the plot is that it makes zero sense for a Sephiroth who knows/comes from the future to kill Aerith. That's the one thing that brought about his downfall since Holy isn't strong enough.

So in the end we had an "Unknown Journey" that was 99% like the original journey just because.

I also fully expect the other timelines to be just some dream of the lifestream nonsense and begone without a trace by the end of the trilogy (which will be exactly like the end of FFVII for reasons, again).

Was Sephiroth a boss mid way through the game on the original? I never got past the Shinra building so Rebirth is all new to me, I have a fair idea of the outline of the story from what I've seen discussed since but in the original did the team actually catch up to him to have these end of the remake boss battles? Also, was he such an edge lord? Like, everyone on FF14 was saying he's the best villains ever when my stance is Ifrit from 15 but he's such an emo and not at all believable, his motivations are just so terribly off. Like reading up in the library gives him such insight it changes his character entirely from a good SOLDIER to a rampaging physcopath, I don't belive it. I was expecting Mako poising to be eating at his brain but it was knowledge in found in books, after Aerith went on her rant about how Sephirot lh is worse than Shinra without any other context at the end of remake I was expecting something substantial. 

Anyway @OP, I was ecpecting people here to mention how stupid having pre Destiny devices in the whispers clashing with the potentiality of Quantum physics and those two things can't exist in the same story in a reasonable manner but I guess it's just me over thinking it. 

Most of those questions will be addressed in Part 3.

Sephiroth/Jenova’s motivations, the Lifestream and its “multiple worlds/timelines” emanations, Cloud’s mental fuckeries, etc…

Most of those were also addressed during the third act in the OG.

All of this.

@LegitHyperbole - If you have not played the original then I don't think you have the platform to make this thread

The remake games aren’t sequels to the OG.

That’s a popular theory that simply makes no sense.

I played the game, why would it matter about playing the original. The story is broken regardless of the original. That's like saying I don't have a platform to discuss The King James bible because it's not the original. You don't have a platform to tell others to not have an opinion on a piece of media because it wasn't consumed the "right way".  

I don’t think anyone needs to play the OG for the Remake to make sense. But it’s also silly to be complaining about the game’s story coherence before having consumed it all. Most of the questions people have will be answered in the final game.

Because as stated its not remake. Its sequel. Your playing a sequel to original(actually compilation of FF7really). "The story is broken regardless of the original." That's the point! That's exactly what they're going for! Sephiroths plan is to change his fate and he has to break to the story to do it which was also Genesis's plan. Changing fate is a big thing with FF7 in Compilation. You thread is based on the idea its a remake which is why you call it broken(Its not the original waaaaaah), but because its not a remake your foundation is wrong. There a lots of hints that that remake series is a sequel and only those played the original will pick up on that. Your also trying to apply to many real world concepts on how think time/multiverse should work towards IP that has done whatever the hell it wants to do when these plot devices are brought in. Have you played FF13 -2?. Then on top of that, there still a whole other chapter brother. 

In regards to it being sequel you do. Have you guys ever played Valkyrie Profile? That was both a prequel and sequel at the same exact time. FF7 does something similar but instead it's a retelling of FF7 while outside forces manipulate it. Those outside forces are Sephiroth and Current Aerith(Post FF7 Lifesteam). If it was not clear there are at least 2 Aeriths, possibly more; The Aerith tha t helps you fend of Sephiroth during Final battle is Post FF7 Aerith(OG) and NOT the current one that "dies"

That’s your theory. Nothing else, nothing more.