> Compiled language authors shouldn't write faster compilers because interpreted languages exist
My point is that the costs of those particular compiled languages is high enough that it's worth some additional investment in speed, regardless of the existence of interpreted languages.
> the costs of those particular compiled languages is high enough
Only if we are talking developer experience.
Even if you are working on something almost no-one uses. Spending a bit of time , or even hours, compiling, will be dwarfed by running more efficient code.
Just remember that there are billions of devices constantly (re)JITing Javascript code...
My point is that the costs of those particular compiled languages is high enough that it's worth some additional investment in speed, regardless of the existence of interpreted languages.