What you are missing is the whole point of writing better languages is to write better libraries. It is not worth it to write better languages if just the "las

What you are missing is the whole point of writing better languages is to write better libraries. It is not worth it to write better languages if just the "last mile" of final program is more productive --- making new languages is extraordinarily expensive, and this sort of single-shot productivity boost just isn't worth it. If you can make better libraries --- code reuse and abstractions at hitherto unimaginable ways and then use those libraries to write yet more libraries, you get a tower of abstractions, each yielding every more productivity, like an N stage rocket. This sort of ever-deepening library ecosystem is scarcely imaginable to most programmers. Or, they think they can imagine it, but everything looks like a leftpad waste of time to them.