I don't know the story but why does a language ever fail? Lack of good tooling support, lack of buy-in from large projects, lack of use-cases, crowded market, e

I don't know the story but why does a language ever fail? Lack of good tooling support, lack of buy-in from large projects, lack of use-cases, crowded market, etc. Not only does every new language (at the time) need to have similar ergonomics to the existing landscape, they also need compelling features to escape the inertia that keeps developers within one ecosystem.