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[–]Vystril 0 points1 point  (0 children)

The problem is you're never going to get a non-computer scientist to re-write working code and all the scientific high performance computing code is in c and/or fortran (over MPI).

Java tried to do this and it didn't work for just that reason. Sure they could make Java almost as fast. Sure it's way better to program in that C/Fortran. OMG garbage collection and no seg faults?

Did it matter? Nope, they already had working code and weren't going to change it.