Unless, for example, you invested billions into trains that run on Windows 3.11 and retrofitting all of them with a modern control system is prohibitively expen

Unless, for example, you invested billions into trains that run on Windows 3.11 and retrofitting all of them with a modern control system is prohibitively expensive. Which means the second type of knowledge becomes as irreplaceable as the first one. https://web.archive.org/web/20240127140416/https://www.gulp.de/gulp2/g/projekte/agentur/C00929028 https://web.archive.org/web/20240127140416/https://www.gulp....