Random Thoughts.....What Are You Thinking?

Neil is Maximilien inverted. The protagonist goes back to Kat and as Max ages he comes to this realization. People age linearly and to carry enough oxygen for the trip would mean breaks in the circuit whereby different Neils could exist sumultaneously albeit at different phenetical ages.

How do we know Neil dies at the end when he goes to unlock the door?
Why does Neil understand the Estonian as if he had said it...

What if Neil is Sator and thereby Rotas. Tenet is the center of the foundation, is it plausible that this is the protagonists name and the security organization he works for is Rotas. They were monitoring the scientist (who is pregnant and looks similarly to Kat) as she discovers the secrets of inverting entropy to travel back in time whereby her son is the one who inevitably becomes the time traveler. Neil could be the mastermind to everything as he's his own father as a result of his time travel. Priyah would be an elderly Kat who since departed ways with Tenet. Neil proves her theories of inversion, but she's since realized it's potential misuses and believes it should be destroyed.

The movie then becomes an endless loop for Neil.

We know the Opera and how Tenet was saved by Neil because he recognized the charm, but which Neil? Could it have been an older Neil on the verge of becoming Sator as it is said that he is known for utilizing temporal pincers, a manuever taught to Neil by Tenet.

But what of Arepo.. given this is the name of the forger who was said to have been close to Kat it isn't so far of a stretch to say Tenet could have been the forger who sold the piece to Kat. It implies that his relationship with Kat is what allows him access to Neil in order to effectively save himself at the Opera. Whereby he infiltrates the organization by posing as an art dealer. Sator buys the pieces because he knows he must, that is why he grows bitter as he ages. He would have to conduct business as Rotas to further his mothers research. When we first meet the scientist we see she's pregnant, potentially hinting that the success of her findings lead to success in her relationship. When we see Kat with Max, he certainly isn't a baby. We also know there's multiple Kat's running around because of the boat scene.

Could the Oedipus complex of Neil have arisen from his feelings towards Tenet who he sees as his metaphorical father for engaging in all of this to start and his mother for having created the paradox.