Whether or not something is rare globally doesn't depend on whether or not it's rare locally. I think most folks at Cern could agree that Fortran is not widely

Whether or not something is rare globally doesn't depend on whether or not it's rare locally. I think most folks at Cern could agree that Fortran is not widely used even if they use it regularly and many others in their field use it regularly. Indeed, Fortran can be rare even though it's likely used more frequently than many programmers are aware!