a few months ago my best friend came up with a really strange theory, but i just felt like i needed to share this with you guys this is her theory:
First she came up with the idea flints machine might still work ( it does we saw that in the second movie,but she told me this after the first movie)
Then she went on and told me food started to fall down again and because some things were packed up in plastic their world became dirty
so flint invented a few new machines named wall-e's
afterwards he designed a ship: the axiom!!
he became the first pilot of the ship, but of course wall-e came there much later