• no rules are universal (except this one)
• all rules need context, therefore no one can tell you how to write software, because no one knows your context
• How do you know what do?

What to do, running an agile life

• Evaluate current status: Find out where you are
• Move forwards: Take a small step towards where you want to be, (your goal)
• Get feedback: Evaluate what happened. adjust your understanding based on what you learned
• Repeat (applying it to everything you do)

How to do it

• when faced with two or more alternatives that deliver roughly the same value, take the path that makes future change easier, avoid one way streets
• get used to both testing pre-release (while crucial, is not the same as validating your product) and validating post-release.
• “done” gets you an output. “Validated” gets you an outcome.