> So if the proposed client/server protocol says the client should send a request twice and discards the first result (a Level 3/design-level statement), and the designer tells you it’s because there are three different kinds of request handlers in the codebase, and Bob’s sometimes gets it wrong the first time (a Level 2/implementation-level statement), you should get confused. You should be as confused as if someone wanted to call a file or write to a function.

# in practice

Is # already there too?