So the best thing I could come up with (assuming a theoretical perfect implementation that wasn't horribly slow and expensive) was the idea that since many lan

So the best thing I could come up with (assuming a theoretical perfect implementation that wasn't horribly slow and expensive) was the idea that since many languages have their own niches and categories of problems that they are best used to express/solve, you could conceivably work on a complex problem where different parts of the computation are most elegantly expressed in different languages. So having a metalanguage that allows you to switch syntax in a lexical scope would be useful!? Highly doubtful that this benefit would outweigh the egregious complexity cost of using a language like Autology, but a fun thought experiment.