Go and Limbo have newsqueak as an ancestor. https://en.wikipedia.org/wiki/Newsqueak https://en.wikipedia.org/wiki/Newsqueak Alef was pretty neat too and was a

Go and Limbo have newsqueak as an ancestor. https://en.wikipedia.org/wiki/Newsqueak https://en.wikipedia.org/wiki/Newsqueak Alef was pretty neat too and was also on Plan 9 https://en.wikipedia.org/wiki/Alef_(programming_language) https://en.wikipedia.org/wiki/Alef_(programming_language)