Different communication mediums are better / worse for different tasks. Lisp might be great for formally writing something down, where you want to have zero am

Different communication mediums are better / worse for different tasks. Lisp might be great for formally writing something down, where you want to have zero ambiguity. That's not the way human conversation works though, we are always eliding details based on the context in order to communicate quickly. The blackboard is no different - it's not the perfect way to communicate ideas but it let's us communicate ideas quickly.