One Endgame detail I noticed …
Tony and Bruce solved the navigation problem of time travel, controlling where and when someone exits the Quantum Realm.
But Pym Particles were still the means of making the trip, And that’s where I get stuck.
They had five years, technology, research, and Pym Particles to study. So why wasn’t reproducing them important?
I’m not saying Tony should have recreated Hank Pym’s work. Maybe Pym Particles were beyond his ability to manufacture.
But if that’s the case, I wish the movie had established it.
Because to me, it feels strange that they solved the harder problem, navigating time, while leaving the technology that enables the journey unexplained.
Am I missing something?