Question: How are Captain America, Black Widow, and Black Panther talking to Proxima Midnight through the Wakandan cloaked shield? What's she looking at? Trees?
Question: Peter said Aunt May would stop him being Spider-Man if she found out who he was, so why hasn't she, given she found out the truth at the end of Spider-Man: Homecoming?
Answer: This may be addressed in "Spider-Man: Far From Home" but without any sort of onscreen confirmation thus far, all we can do is speculate. Perhaps Peter was mistaken about how Aunt May would feel about him being Spider-Man, or he could have simply told her he would stop being Spider-Man but lied about it.
Question: How are Thanos and the Black Order able to track the infinity stone throughout the galaxy?
Answer: We aren't given a specific answer, but as Thanos himself tells Tony Stark, "You're not the only one cursed with knowledge." Thanos has probably studied the Infinity Stones for most of his life, and with the exception of the Soul Stone, every Stone presumably gives off some kind of energy signature that can be tracked.
Answer: He probably has spies everywhere and he can probably gain their location through interrogating his victims.
Question: Wouldn't Thanos have been able to kill all of the Avengers and Guardians on Titan without trouble as he had 4 stones?
Answer: Well Dr. Strange used the time stone to see how they could fight him and they executed that plan, though as Strange knew they wouldn't win against him. Eventually Thanos did beat them but I suppose advanced technology and strength in numbers were a good advantage even if he had 4 stones. I think they intentionally went for speed and his mind as that's the 2 stones he was still missing.
Answer: Since they are in possession of the Time Stone and Doctor Strange is hiding it with magic, he may have decided to refrain from killing all of them, otherwise locating the stone afterwards could prove a difficult task.
Answer: He could have, but Thanos sees himself as merciful and doing the right thing. He fights the Avengers and Guardians in order to stop them and gain the Infinity Stones. He has no particular interest in killing any of them.
Question: Were they originally going to have Scott and Clint in this movie?
Answer: I've read that the opening scene of "Endgame" with Clint and his family was originally going to be in this film. Ant-Man's inclusion seems doubtful since the post-credits scene for "Ant-Man and the Wasp" takes place at the same time as the climax for this film and Ant-Man is on the other side of the country doing his own thing.
Question: Instead of telling Stark to turn the donut around why doesn't he use a sling ring?
Answer: The range of the sling rings hasn't been defined. They were in deep space at this point, so they may have been too far away for Strange to open up a portal on Earth for them to step through.
In Endgame, Strange opens at least one portal from across the galaxy. For example, we see the one opened from Titan that he, Spiderman, and the Gaurdians all come through. Unless his sling powers suddenly increased after the great purge, he should have been able to open a portal from deep space on the ship.
Answer: The Q Ship was travelling in some form of hyperspace. It would be reasonable to assume that the slingring could not work under those circumstances. When he does use it later, it is from the surface of the planet Titan.
And when they arrive on Titan his idea to protect the time stone changes. He instead looks at different time-lines.
Why would it be different in hyperspace? The ship has its own gravity.
By definition, hyperspace exists outside normal time and space. Depending on how the sling ring works, it may not be able access normal space.
Answer: It's not a cloaking shield. It's a defensive barrier. There would be no need to have a cloaking shield within the city because anybody that's inside the city would seemingly already know that Wakanda is hidden.
Phaneron ★
The cloak is to hide the city. If Cap flew in and only saw trees...what is the Black Order looking at and talking to?
DetectiveGadget85
The cloaking shield is what hides the city from overhead view, so aircraft that fly over can't see that there's an advanced city hiding within what is believed to be a third-world country. The barrier around the palace is to prevent enemies from attacking. That's why the "space dogs" are being torn apart when they try to go through the shield. When it becomes apparent that they can get through the shield when they attempt to do so in large numbers, Black Panther orders a section of the shield to be opened in order to bottleneck the forces in so that they can't surround the palace and penetrate the shield from a side that's not as well guarded.
Phaneron ★
This wasn't an overhead view. They were flying low and in a straight line into trees that on the other side hid buildings that were the same height. They weren't looking down.
DetectiveGadget85
Irrelevant. The simple fact of the matter is the Wakandans build that shield, and they can do anything they want with it. Perhaps the cloaking part is discarded to boost the shield's defensive capabilities.
lionhead
That's an illogical answer: they can do what they want. Perhaps? Where is that in the movie? These are guesses not answers.
DetectiveGadget85
Are you saying they don't have full control over their own shield that they designed and can manipulate very specifically, as seen in the movie?
lionhead
"Perhaps the cloaking part is discarded to boost the shield's defensive capabilities." - where is that in the movie? This website would not exist if every response was "they can do whatever they want".
DetectiveGadget85
It is when we are talking about future technology in advanced civilizations. This entry is also a question, not a mistake. There is a simple explanation for it, so that is the answer.
lionhead
This is a theory not an explanation. An explanation would be backed up by facts from the movie.
DetectiveGadget85
There isn't an in-film "explanation", but that's a distinction without a difference. If in a movie we see someone in one place and then several scenes later we're shown them somewhere else, there isn't an "explanation" for how they've got there, but there might be plenty of perfectly reasonable theories about how - drove themselves, got a ride, took the bus, etc. This is a wholly fictional technology and the "facts from the movie" are that people can talk through it, just like they can choose to open specific narrow sections. So we take at face value that it's possible, because there's no in-film reason to assume it isn't possible.