@lonnythompson8131

You need to distinguish between classical FORTRAN as specified in FORTRAN 77, from the 1970s, compared to MODERN Fortran versions after 1990 and into the 2000s; Classical FORTRAN is sometimes still used for legacy numerical codes and is simple. Modern Fortran has many more convenient programming features that are very useful, yet run at nearly the same speed as simple Classic Fortran.  Working with modern and classic Fortran is not the same. So, it should be talked about in this way, not monolithically like you have done.  One observation on the video is that the use of "Stock" generic video clips does not add much to the discussion. It would be much more useful if you showed working Classic FORTRAN code examples and Modern Fortran examples, and contrast them.  As you pointed out, classic FORTRAN is very easy to learn if you already know how to program numerical methods; so employers don't get overly excited that you learned it, as it can be learned very quickly once hired for the job. What is more important for HPC is understanding of memory, threads, convergence tolerances, etc, not the language itself.

@anirbanmajumder4152

In Usa, NASA used fortan language!

@tbd-e1j

Sir, how difficult is it to survive in academia after PhD in mathematics?