Aaron Parecki

X is a Y which/for Z. It’s for V. Replace X with your product name. Replace Y with one of the choices: If it’s something on your computer, it’s a “program” > or “application”. If it needs WWW, and I need a browser for it, it’s a “service” It it needs both, it’s a “solution” or “environment” (and perhaps a > service too) If it needs hardware, it’s a “platform” or an “infrastructure” Replace Z with a short sentence which must have one of the verbs: Build Test Deploy etc. Replace V with your potential customer name. So let’s try: X = Docker Y = Solution Z = Sandboxing programs V = Developers and sysadmins. Result: Docker is an environment for sandboxing programs. It’s for developers and sysadmins.

State is not your friend, state is your enemy. Changes to state make programs harder to reason about, harder to test and harder to debug. Stateful programs are harder to parallelize, and this is important in a world moving towards more units, more cores and more work.