Here is a related thread. I found Dr. Fortran’s comments extremely helpful and I will quote it here:
The lesson I took from the ultimate failure of HPF is that trying to “bake in” to a language features tied closely to current hardware architectures is likely to end up being a wasted effort that becomes irrelevant over a short timeframe.
From an end-user perspective, if do concurrent+coarray can be well-supported by different compilers, we can write a single piece of code and run it on different hardwares. This is essentially the most ideal state for scientific computing, and as far as I know, Fortran is one of the languages (I could probably cross out “one of”) that excels in this regard.