When sources or methods change
Separate new evidence from a better method, and decide what later tasks should inherit.
A new fact is not a new method
In the fictional research story, an additional revenue source resolves a missing comparison. That helps answer the current question, but does not automatically improve the method for later analysis. The story is an illustration, not a customer case or evidence of investment performance.
Decide what the next task should inherit
A useful lesson might be to establish the comparison basis first, identify the conclusions that depend on it, and check whether the method still applies. E2C is intended to organize that work with Codex, reducing the need for a professional team to reconstruct each dependency on every task.
Approve and check the change
A responsible person decides whether an improvement should be retained. It then needs to be implemented and checked for its effects on existing requirements. A good result once does not prove suitability for every later situation, and a new version does not change the record of earlier failures.
Keep what remains useful
The intended outcome is a useful result today and a system whose checked methods can support later work where they apply. Preserve what is still sound and revisit the affected parts. New circumstances still require judgment; this is not automatic learning or a promise of stability or higher business returns.