Re:How to write code in modern Fortran (2011) [pdf]
by TheRealKing on Wednesday January 30, 2019 @03:45AM
(#19033604)
The truth is, any language other than Fortran/C is slow for any serious high-performance-computing task (which is not the same as everyday back-of-envelop calculations and plotting).
The focus on the speed of execution also downplays two other important aspects of python: speed of writing code and possibility to visualize results easily. As a theorist these two aspects outweigh any argument in favor of Fortran. The only serious competition to python for me is mathematica.