C, yes. As terrible as C is, I have no doubt that people will be using software written in C everyday in year 2300. > So I would probably make a minimal progra

C, yes. As terrible as C is, I have no doubt that people will be using software written in C everyday in year 2300. > So I would probably make a minimal programming language, maybe some kind of minimal Crystal. A new programming language made now (such as Crystal) has the least likelihood of lasting 100+ years, no matter how good it is.