A backlog item is ready for a number when the team can name the fact that would change it. A checklist that demands finished screens first is a gate, not a refinement.
Teams don't struggle with technical debt because it's unquantifiable — they struggle because they estimate the wrong thing. A layered guide to choosing the right method for the decision you're actually trying to make.
Two decades of this argument, and teams are still asking the wrong question. A practical guide to when each method helps, when it hurts, and what actually makes estimation work.
Compare Fibonacci, T-shirt sizing, story points, and #NoEstimates. Learn which technique fits your team and why the conversation matters more than the number.