Methodology
Our methodology
How La So Viet separates calculation, interpretation rules, AI, and evidence behind each statement.
Current scope
The method has four layers: normalized birth input, calculation adapter, chart contract, and bounded evidence. A published statement can therefore name the field or rule that supports it.
How to inspect it
Insufficient input is not filled with a guess. The unknown-time fixture stops with TIME_UNKNOWN before the adapter runs; that is a product boundary rather than a hidden error.
Limitations
This material describes product behavior, data, and public scope only. It is not a certain forecast, diagnosis, or substitute for professional advice.
