Or lua, or C. I think if you want to make the individual expressions be built out of blocks you need a lot of control and introspection of every atomic element

Or lua, or C. I think if you want to make the individual expressions be built out of blocks you need a lot of control and introspection of every atomic element of a language, but that doesn't seem impossible to me for a simple language. I agree that many times visual programming is hindered by not trying to exist in a real world ecosystem.