Language-Games
The concept of language-games is very helpful for understanding all other social practices, such as law, morals (that is the other perception of norms), economy, science, politics, aesthetics, mathematics, sociology, psychology etc. All the social practices are about language, all differing only in the chosen perspectives and the perceptions created - hence all the boundaries between the various social practices are only artificial, and imposed by social conventions for the convenience of the spectator. � Language is simply the most general and fundamental of social practices � whereas the others deal with a special usage of language or language looked upon from a certain perspective.
The notion �competition� fits very well with the idea of language-games � especially pointing out that there are no rigid rules and boundaries.