@david_chisnall
There is a recent game called Chants of Senaar that explores this "use-based language": a city where each caste (priests, soldiers, artists, scientists) have their own language that you need to learn, each language fit for expressing different concepts that were alien to other caste.
@baltauger In linguistics, the Whorf-Sapir hypothesis, also known as the Linguistic Relativity hypothesis, argues that language constrains thought. This was the idea behind Orwell's Newspeak. The strong variant argues that you cannot think an idea that your language cannot express (the goal of Newspeak), the weak variant argues that language guides thought. The strong variant is largely discredited because it turns out that humans are really good at just making up new language for new concepts. The weak variant is supported to varying degrees.
I keep trying to persuade linguists to study it in the context of programming languages, where humans are limited in the things that they can extend because a compiler / interpreter also needs to understand the language. I think there are some very interesting research results to be found there.
@baltauger In linguistics, the Whorf-Sapir hypothesis, also known as the Linguistic Relativity hypothesis, argues that language constrains thought. This was the idea behind Orwell's Newspeak. The strong variant argues that you cannot think an idea that your language cannot express (the goal of Newspeak), the weak variant argues that language guides thought. The strong variant is largely discredited because it turns out that humans are really good at just making up new language for new concepts. The...