It does. What part didn't you get?
Like most Nolan movies they're not as complex as they first appear.
All right here goes lol ......
All the other Nolan movies made perfect sense to me (although the last 20 mins of Interstellar was pretty out there). If you re-watch say Memento and The Prestige, all the clues are there and the conclusion is logical.
The problem I have with Inception is the character of Cobb and his motivations. So he wants to see his kids again and Saito with one magic phone call can make that happen instantly even though he is accused of murder. Far fetched, but fine I'll buy that for a second.
But here's the theory which keeps bugging me, what if inception is being performed on Cobb himself? Especially when he has the major revelation with Mal four levels down, when he finally accepts that she is gone and what his mind can piece together about her is not good enough. Perhaps this is all he was looking for, absolving the guilt that she suicided before returning to his kids. That could be the idea that they're trying to sell deep into his subconsciousness.
There are bits of dialogue that hint towards that, Michael Caine saying "what are you doing here", "come back to reality", but this one especially
"No creeping doubts? Not feeling persecuted, Dom? Chased around the globe by anonymous corporations and police forces, the way the projections persecute the dreamer? Admit it: you don't believe in one reality anymore. So choose. Choose to be here. Choose me."
Ellen Paige's character seems to be leading Cobb throughout the movie towards this, why would she bother with him so much if Fischer was the target? Maybe the only bit of 'reality' is when he wakes up in the plane in the end, and the rest was the crew in his mind.
I can't really tell whether there is any substance to that, and the movie doesn't really commit either way. It gives a lot of hints towards many possibilities and then leaves it hanging and contradicts various theories.
That's what annoys me.
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