Let me just say something about pipes. The great UNIX philosophy was: the output of my program should be the input to your program, to compile things… - Joe Armstrong

Object Oriented Programming, this is the art of hiding side effects. If you can do it successfully you can write this in program. If you do it unsuccessfully, you get in a sucking mess.

Documents are full of paragraphs. But the paragraphs don't have name. So, we can't talk about the paragraphs.

Don't be deluded into thinking that is sort of ultimately fault tolerant. You can only provision it for the faulty things that might happen and then for a large class of things it could happen.