Facebook post by University of Helsinki

Researcher Kaius Sinnemäki investigates 150 different languages to find out how the structure of language adapts to the social structures of the speech community: for example, the size of the community, and how much a language is learnt as a second language. Sinnemäki received a competitive ERC Starting Grant for his research.
The structure of a language changes quickly when a lot of its users are not native speakers helsinki.fi

Half of the languages in the world do not have a written form.