Ship design illustrates the scale problem in historical comparison. A single year may show little visible difference from the one before it, whereas a span of years exposes changes in design, technology, and naval requirements. The appropriate interval depends on the question, the number of available data points, and the space available for analysis. Decade-scale comparisons make gradual naval development easier to see than year-by-year snapshots.
Notable Point · 11:02-12:30
Why decade-scale comparisons reveal ship design change
Annual points can be too close together to show gradual naval development, while decade-scale samples make accumulated change easier to see.