During my PhD (not in CS) I met a CS PhD who was working on parallel algorithms. At the time I was struggling with large-scale simulations and HPC stuff so I go

During my PhD (not in CS) I met a CS PhD who was working on parallel algorithms. At the time I was struggling with large-scale simulations and HPC stuff so I got very interested. I asked him what programming languages he used. "Oh I don't know how to code. We don't write programs in CS Theory."