Preserving language diversity resembles preserving biodiversity. I’ve seen two models of protecting biodiversity: natural preserves and zoos. Natural preserves protect species in a complete ecosystem, while zoos preserve individual species in isolation.
When most people look at language preservation, they take a “zoo” approach, that is, they approach the language in isolation. For example, the Transparent Language company is giving away its technology to preserve languages. Enthusiasts can thus create language courses for learning those languages that are quickly disappearing.
But can this work? Zoos run into problems because the individuals live in an artificial environment, cut off from nature. They can no longer go back. Yet species such as grizzly bears flourish on their own when the habitat, the biosphere, is restored, such as at Yellowstone. More than restoring individual languages, we must create a lingua-sphere wherein multiple languages can thrive without outside intervention. We must challenge the monolingual norms of many nations that are becoming more prevalent by learning and speaking and dignifying other languages.