Avengers: Endgame - 25 WTF Moments

10. How The Hell Did They Shrink Thanos' Ship (And How Did It Time Travel)?!

In order to achieve time travel by this film's logic, you have to shrink to miniscule size and travel through the Quantum Realm, using Tony Stark's time GPS system and the new Quantum Engine in Avengers HQ. Without one part of those, you can't accurately achieve anything.

And yet, that's exactly what happens when Nebula brings Thanos to 2023. Sure, she hands over older Nebula's Pym Particle to help the ship shrink, but that makes no sense. Firstly, SHE needs the particle to travel back with Rocket and Thor to 2023 in place of the other Nebula. She has no spare, as it's been firmly established already.

And then there's the whole issue of how Thanos uses the Pym particle she leaves him to shrink his ship. That technology is esclusively limited to the knolwedge of Hank Pym and Scott Lang presumably (since he's able to shrink the Benatar). It's not something you can just DO because you have the right particles. Especially when you shouldn't in the first place.