By Anna Hartung — H-Studio Berlin
There's a comfortable story going around: AI coding tools made architecture less important. If you can generate a feature in thirty seconds and regenerate it when it breaks, who cares about clean boundaries? Just vibe it.
The data from 2024–2025 tells a less comfortable story. We're producing code faster than ever — and a measurable amount of it is the kind you pay for later. AI didn't make architecture optional. It made the lack of it cheaper to create and more expensive to live with.
What the data actually shows
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Churn went up — the share of new code revised or reverted within two weeks of being committed climbed year over year, a proxy for "shipped before it was understood."
Academic work is pointing the same direction: a 2025 study on , an architecture-first engineering studio in Berlin. We spend a lot of our time making sure fast-moving code lands on a structure that can hold it.
Sources: · arXiv 2512.11922
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