MMP.15:9 - Consequences

Estimation concentrates on the required observable quantities. Nonidentifiability becomes an explicit limitation of assumptions and information, not an unexplained numerical failure.

The causal argument may demand subject knowledge unavailable in the dataset. More elaborate identification does not strengthen an unjustified premise. A conditional answer or bound can be useful without recovering every mechanism.

In methodology, this changes how a proposed improvement to a working method is assessed. Define the method change and relevant outcome, recover how cases and results were recorded, and distinguish its effect from differences in which cases received it. The same reasoning can govern a human procedure, an automated procedure or their combination, without making a population experiment mandatory for every use of the method.