If you vary the way games work too much, you end with useless non-games (winning is undefinable, one player always wins...)
If you vary the way rationality works too much, you end up with paradox, quodlibet etc.
If you vary the rules of meta ethics too much, you end up with anyone being allowed to do anything, or nobody being allowed to do anything.
“The rules are made up” doesn’t mean the rules are abitrary.
There is a family of chess-type games, and they are different games, because they
are not intersubstitutable.
If you vary the way games work too much, you end with useless non-games (winning is undefinable, one player always wins...) If you vary the way rationality works too much, you end up with paradox, quodlibet etc. If you vary the rules of meta ethics too much, you end up with anyone being allowed to do anything, or nobody being allowed to do anything. “The rules are made up” doesn’t mean the rules are abitrary.
There is a family of chess-type games, and they are different games, because they are not intersubstitutable.