The Hidden Cost of Software Rewrites

Systems are not lost to failure, but to forgetting. When decisions cannot be undone, change becomes collapse, and rebuilding becomes inevitable.

Every system eventually invites a rewrite.

Almost never because it broke. Usually because nobody left on the team can change it without holding their breath.

The structure feels rigid. The decisions feel outdated. The system resists modification in ways nobody can quite explain, and nobody particularly wants to be the one to justify. A new feature means touching six files that shouldn’t be related to it. A fix in one corner breaks something two teams over, for reasons that take a week to trace. At some point somebody says the quiet part out loud in a planning meeting, and a clean slate starts to look reasonable. Sensible, even. Overdue.

Greenfield work makes a good pitch. No history to work around. Every decision made on purpose this time, by people...

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