science

Sure, but that's not what 'complete' means in the context of gödel's incompleteness theorems. It means 'being able to prove all true statements'.

And I really don't see why that matters - for example an NES emulator doesn't know what a Mario is, or what a jump is, but it's still true that when certain games are running, most of the time pressing one of the buttons on the controller makes Mario jump.