I mean, Fortran isn’t even dead. It was updated last year. Weird but it’s still a used language.
And it is still living in weather forecasting models used by many weather institutes.
Source: Work for a weather institute.
We use those too! The weather forecasting models are really important for calculating prices in the German Energy market. My company is even paying people extra for learning Fortran to do these tasks. It’s really weird to talk to 20-something y/o people who actively use Fortran.
All the best linalg libraries are in FORTRAN.
Pretty sure numpy hooks into them. I don’t know anyone who uses computers for serious work that doesn’t use FORTRAN. It’s the best.