Earlier quoted context omitted.
This is a very reductive take. Even if you don't like Jon, calling Jai an exercise in arrogance is simply untrue. When he started making Jai in ~2014, there were very few viable alternatives to C/C++ in the systems programming space that offered the kind of expressive power becoming of a langauge built this century. Rust is great, but it prioritising correctness is not always the right choice, especially not for game…
How has Jai introduce ideas if it’s not even released? How can we claim to know what it did “right” when only a few projects have been built in it?
[0]: https://inductive.no/jai/ [1]: https://github.com/Sharir/jai
*Although there has (always?) been a private alpha/beta release.