George was broke but maybe he still had some cash from selling things
I got the impression the brothers still had money. I mean Walter just dropped that stack of cash just for the boat so he could have been funding the whole operation.
I can't defend the daughter because I really couldn't stand that character. During the OD I was like just let her go
Grace saw the flaw in the code and maybe got emotional seeing the girl die
Did they explain the age part? Did making them powerful also made them age slower? I think they were in their 90s. Do the kids also age slower?