Questions here 1. So the screen wasn't a lie after all in the end then why were they showing the people who go to clean grenery? As when jules got out the grenery was some kind of graphic 2. Their was multiple silos but why hide it? 3. Who are the founders and why hide the past of humanity from.Humans? 4.how did everything end? 5. How was jules able to go past the boundary while everyone died before the tree
Edit: more questions 1. Why no magnifiers 2. Why no lift
Jules was able to get past the boundary because the tape used on her suit was the good tape.
There is the whole plot about the stolen tape. The reason the IT guys were after the missing tape was because it was specifically bad to make the suit not airtight, they were worried about people finding out and getting suspicious.
When Jule's friends used the good tape from maintenance it ensured her suit would be actually airtight, and she wouldn't die from the airborne poisons.