Along other things, there was a heavy investment in marketing the languages that came at the same time as the likes of ocaml [1]. In more recent years, we've al

Along other things, there was a heavy investment in marketing the languages that came at the same time as the likes of ocaml [1]. In more recent years, we've also seen that backing by a major company that can help building the ecosystem is a major factor, as happened with Go. Finally, some languages flourished because they offer access to a platform that would otherwise be inaccessible, as JS does. Overall, though, functional languages see progression today, they may not have an exponential growth, but neither did Python, and look where it is now. [1] https://www.theregister.com/2003/06/09/sun_preps_500m_java_brand/ https://www.theregister.com/2003/06/09/sun_preps_500m_java_b...