There's a lot more possible states than eleven. 32 if you count just whether a finger is extended. More if you allow crossing fingers, interaction between hands

There's a lot more possible states than eleven. 32 if you count just whether a finger is extended. More if you allow crossing fingers, interaction between hands, etc. And this isn't theoretical either: https://en.wikipedia.org/wiki/Chinese_number_gestures https://en.wikipedia.org/wiki/Chinese_number_gestures