As a parent of a nine-year-old boy: yup, that's about it.
Mostly I just imagined that his training took an additional two or three years before being promoted the first time.
Also of relevance is that, while not mentioned explicitly, I think there was a eugenics program going on. They were intentionally trying to produce a savant.
I need to re-read the beginning with an eye to clues about the program for producing child soldiers. Although, it's quite possible that such clues are only really available in the other books. According the Wiki chronology, almost half the books in the series happen prior to the events in Ender's Game.
Wiki also says that filming for the movie just started this past February. That, I'm not sure I can quite imagine.
I have only ever read the one book, though.---
[ucblockhead is] useless and subhuman[ Parent ]
He's also become a kinder, gentler manipulator.
Now, the fact that Ender was a third child is possibly worth some debate - Peter being a heartless nutcase and Valentine being hearts and minds, and all.
But for me it posed the question - how far would you distort basic parts of life in order to survive? Fitting your kids with recording devices and placing them in a hothouse environment from a very early age?
That was what I found fascinating though, although never really addressed in the books - how far would you go, when the stakes are that high?
[ Parent ]
Jesus Christ you're a tool -- Dr Thrustgood
Kind of like that except the kid was trained by the military to play the video games from the age of six on because the government knew how brilliant at playing video games he would be and knew that they needed someone to play video games to save the universe.