Decide at the Last Responsible Moment
Re-reading Lean and XP reminded me to time decisions with learning, not urgency.
Past
In 2008, I read Implementing Lean Software Development. One idea stamped itself on my practice: the last responsible moment. Don’t decide too early; decide when learning peaks and risks are at their lowest.
Around the same time, eXtreme .NET (2005) nudged me toward XP habits I still use—TDD, Refactoring, Customer Collaboration, Pair Programming. I didn’t call it out then, but those books quietly rewired how I ship work.
Present
Nine months ago, I bought Lean and reread it, highlighting every other page with a marker. I noticed how much of my default practice had grown from those seeds. I’m also preparing a new talk for the Agile Leadership Network on Scrum + Agile + AI. Mapping Scrum events and accountabilities, and XP practices, I’m asking: Where does AI help us learn faster so we can decide later and better?
To ground it, I’m revisiting XP and conducting a personal study in NotebookLM, utilizing 20 years of posts and 35 talk transcripts. I’m asking it to surface where I’ve practiced Scrum/XP and where AI is already integrated. The surprises are helping me refine both the talk and my day-to-day approach.
Future
Here’s the next turn of the spiral: blend time perspective (past–present–future), the data → information → knowledge → insight → wisdom → impact loop, and visual thinking. The aim is simple:
Learn better now (and tighten the loop).
Improve at making decisions only when necessary.
Could you make the next move with greater context and more confident assurance?
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