Modern code review is expensive not only in direct reviewer time but in opportunity cost, because developers spend an average of six hours per week reviewing other people's changes and must switch away from their own work to do so.
Source quote, verbatim
Developers spend a significant amount of time reviewing the changes of others
Wulf A. Kaal, Code Review DAO (2024). SSRN: https://ssrn.com/abstract=4734750
Holds when
modern code review practice in industry and open source projects
Classification
empiricalsupport: evidencedopen-source-and-code
Related claims
restateskaal:claim:3995709-001 Modern code review imposes substantial hidden costs because developers spend an average of six hours per week ...
Verify
The quote above is an exact substring of the source PDF, whose sha256 is 60eadf91c0913468505afc664c8d8d1e1673d6c5326d031ca7060addb8ab2eda. Extraction method: pdf-text-layer. Attestation record: colloquium/attestations/085cec80378cc13d...json Verify the binding yourself: curl -s https://wulfkaal.github.io/claims/4734750-001.md | sha256sum