alt Hacker NewsAuthor here: I didn't go into more detail on this than https://chapel-lang.org/blog/posts/30years/#maybe-hpc-doesnt... because I felt like the article was long enough already and that I'd recently covered that topic in detail in this series https://chapel-lang.org/blog/series/10-myths-about-scalable-... summarized here https://chapel-lang.org/blog/posts/10myths-part8/#summary
In the "maybe we don't need it" you open up with this:
> Another explanation might be that HPC doesn’t really need new languages; that Fortran, C, and C++ are somehow optimal choices for HPC. But this is hard to take very seriously given some of the languages’ demerits
It's honestly hard to think of a less specific claim than "some of [their] demerits", this is clearly preaching to the choir territory. Later hints of substance appear, but the text is merely reminding the reader of something they are expected to already know.
Moving on, the summary for the "ten myths" series starts with:
> I wrote a series of eight blog posts entitled “Myths About Scalable Parallel Programming Languages” [...] In it, I described discouraging attitudes that our team encountered when talking about developing Chapel, and then gave my personal rebuttals to them.
So it appears to be a text about the trouble of trying to break through with a new "HPC" language, and the reader is again expected to already know the (potentially very good) technical reasons for why one would want to create a new one.