Replication Without Diversity

Replication preserves information, but it can also reproduce existing mistakes or introduce new ones. Checking copies against a reliable source helps control copying errors. Diversity serves a different purpose: it reduces dependence on a single inherited pattern or response.

The Habsburg Example

From their rise in the 11th century to their rule in the 18th, the Habsburgs used marriage to consolidate power. Close-relative marriages were part of this strategy. Their motto was "Let others wage war; you, happy Austria, marry."

Repeated marriage among relatives can increase the likelihood that children inherit two copies of harmful recessive variants. The account describes health and fertility problems in the Spanish Habsburg line, including those of Charles II, whose death ended that branch’s male succession. This was not the extinction of the entire Habsburg dynasty.

Photocopy Analogy

Imagine a teacher photocopying a worksheet, then using each copy as the master for the next. Marks and distortions can accumulate. Keeping a clean original avoids repeatedly copying those defects.

The examples show different mechanisms: photocopies can accumulate reproduction errors, while inbreeding can expose harmful variants already present. In organizations, the practical question is whether repeated practices are being checked and whether alternative approaches are available when conditions change.