When we were putting the core rulebook together, we considered various "Linguistics" Backgrounds from previous Storyteller/ing games. Sometimes they added one extra language per dot, but that's only six languages, and some people know a lot more than that.
Some games basically doubled per dot, while others went with language families instead of individual languages, but those had their own issues.
Finally, we just asked ourselves if there was any value in limiting the number of languages you could learn in a game that is essentially about hypercompetence, and we decided the answer was "no." If it makes sense for your character to know a language, they probably know it, although you may want to limit it according to your Intellect, as per the suggestions in the Rosetta Stone Gift on TC p. 201.
Some games basically doubled per dot, while others went with language families instead of individual languages, but those had their own issues.
Finally, we just asked ourselves if there was any value in limiting the number of languages you could learn in a game that is essentially about hypercompetence, and we decided the answer was "no." If it makes sense for your character to know a language, they probably know it, although you may want to limit it according to your Intellect, as per the suggestions in the Rosetta Stone Gift on TC p. 201.
Comment