Let’s just say the scientist knows more about this stuff than Tony Stark
Avengers Endgame': Time Travel, Quantum Mechanics Explained by Scientists
Why didn't the Avengers just talk to a quantum physicist when Scott Lang entertained the idea of time travel instead of going straight to Tony Stark? - Quora
Does quantum physics really make time travel possible as shown in Avengers End Game? - Quora
What if Ant-Man never went to the quantum realm? - Quora
Physics - Might There Be No Quantum Gravity After All?, gravity
Avengers: Endgame writers address time travel questions - CNET
Avengers 5 Writer Explains Why He Was 'Bummed' by Endgame's Time Travel
Back to the Future 2' Is a Sham - The Ringer
Does quantum physics really make time travel possible as shown in Avengers End Game? - Quora
Ant-Man's Time Travel Idea • Endgame 3D 4K • 5.1 Audio
A Chat With a Quantum Physicist About the Time Travel in 'Endgame' - The Ringer
A physicist explains the science of 'Avengers: Endgame
Ant-Man and the Wasp: Quantumania - Wikipedia
Avengers Endgame: How Quantum Mechanics Made Time Travel Possible?