Almost all the cases under the “How to fix that” heading seem addressed by Julia, but also MATLAB or Python if performance is not an issue.

As a PhD student who heavily relies on highly optimized Fortran code and who has spent time translating small Fortran projects to Python+NumPy, I don’t understand why anyone would start a new project in Fortran. The only people I know who write Fortran do it because of legacy code or because that’s the only language they know.

Since calling Fortran is fairly well supported for languages used in/designed for science (Python, MATLAB, Julia), I don’t see legacy code being as big a driver.