Nostalgia was the driving force behind me cracking open the old AD&D reference manuals a few days ago. Amidst Gary's loquacious prose, I saw something that I did not remember from 30 years ago in the Player's Handbook:
" . . . all intelligent creatures able to converse in speech use special languages particular to their alignment."
Back then, I think I paid that as much attention as I paid the rules for encumbrance and morale. But the concept of alignment languages is very interesting. Like-minded people can communicate better, and in the fantasy word of AD&D, even have their own languages. But Gary goes on:
"If a character changes alignment, the previously known language is no longer able to be spoken by him or her."
I was always fascinated about how AD&D's Outer Planes were based on alignments, but looking at this effect on the creatures in the Prime Material Plane puts a different spin on things. If I change my alignment from True Neutral to Neutral Good (in essence caring a bit more about other people,) I either have a chemical and biological change in my brain that allows me to speak a new language and forget the other, or I am suddenly in tune with some frequency of a universal harmonic that gives me the power of a new type of speech and understaning.
Now that is very odd and very hard to explain. It's probably one of the reasons whey I tended to ignore the alignment system in my campaigns as well. My view of the universe, even made up ones, never included such things. But it is interesting to ponder now.