I was talking about reality: https://www.hpcwire.com/off-the-wire/julia-joins-petaflop-club/ https://www.hpcwire.com/off-the-wire/julia-joins-petaflop-cl... No

I was talking about reality: https://www.hpcwire.com/off-the-wire/julia-joins-petaflop-club/ https://www.hpcwire.com/off-the-wire/julia-joins-petaflop-cl... Nothing overstated; just the circumstance in the real world that these four languages are the only ones used in the most demanding HPC. C and Fortran are also not as fast as they could be if you use them incorrectly. Using concrete types is not “significant tweaking”.