More stations, faster sampling and additional data sources can reveal patterns that would otherwise remain invisible. They can also multiply gaps, mismatched timestamps, conflicting definitions and observations that answer different questions.
Volume increases what is available. It does not decide what is relevant.
Relationships need purpose
A current meter, weather station, water-quality sonde, maintenance record and satellite image may all be useful. Their usefulness depends on the question, the spatial and temporal relationship, their quality and their limitations.
Combining them because they exist can create the appearance of sophistication without improving the explanation. Good synthesis starts by asking what each source can genuinely support.
Conflict is information
When sources disagree, the answer is not always to average the disagreement away. Different locations may be behaving differently. A sensor may be unhealthy. Time alignment may be poor. One source may respond to a different environmental process.
ATHAR principle: bring evidence together to reveal relationships, disagreement and gaps—not to make every source tell the same story.
Understanding has a boundary
Additional data may strengthen an interpretation, challenge it or leave the important uncertainty unchanged. The useful outcome is not always a more confident answer. Sometimes it is a more precise statement of what remains unknown.