Measurement and falsifiability
RDD should be measured by where disagreement appears.
RDD is not a belief system. After a team tries it, measure whether consequential ambiguity moved earlier and whether less misunderstood behavior crossed the delivery baseline.
Do not invent benchmarks. Start with a ledger that makes timing, evidence, and post-baseline churn visible.
What to measure after trying RDD
Track where ambiguity moves.
The practical standard
RDD should be measured by where disagreement appears and how much ambiguity crosses the delivery baseline.
If a team runs Reality Loops and still discovers the same behavioral misunderstandings in UAT, the method did not do enough. If the loops surface disputes early, discard weak scope, and give engineering a clearer baseline, the method has done useful work even before any budget effect is claimed.
What not to measure alone
Do not judge RDD only by how quickly a candidate was generated. Speed is useful only when it creates better evidence. A fast prototype that carries false confidence into production is not an RDD success.
The stronger test is whether the team can explain why each committed behavior exists, which loop accepted it, which alternatives were rejected, and which Reality Checks still limit confidence.