"Programmers" exist on a (not always "the") spectrum. At one extreme, there are frontend developers changing JS/Ruby frameworks every few months. New stuff is fun to play with. At the other, there's there's Tony Hoare's quip that "I don't know what the language of the year 2000 will look like, but I know it will be called Fortran." (https://arstechnica.com/science/2014/05/scientific-computing...). In 2025, quite a few of the numerical routines powering LLMs are built on top of BLAS, LAPACK, and other frightening FORTRAN IV code that shouts at you using very short words like SGEMM and DGESV. It's a big tent; get comfortable.