I can see real books disappearing first, before files. This concept is so much ingrained in the actual development of apps, that it can't simply go away. Start

I can see real books disappearing first, before files. This concept is so much ingrained in the actual development of apps, that it can't simply go away. Starting with scm, make/project files, editors, runtime functions, access to devices - it's all file based, and it's the lowest common language between 99% of the systems in this world.