I know of at least one language which actually uses this approach in its module system; namely, Io [http://iolanguage.com/ http://iolanguage.com/]. In Io, if yo

I know of at least one language which actually uses this approach in its module system; namely, Io [http://iolanguage.com/ http://iolanguage.com/]. In Io, if you refer to an undefined name, all Io files in the current directory are searched for that name. The file containing that name is then automatically imported. I’ve never used Io so I don’t know how it works out in practice, but I suspect that the small community helps, in that backwards compatibility becomes less important.