IDEAS, DECISIONS & LESSONS

Journal

Notes on AI, architecture and building useful products.

4 articles

02 Aug 2026 · 7 min read

ai-productivity

The AI Productivity Paradox: Why 98% More Code Isn't 98% Faster Delivery

Teams using AI coding tools generate 98% more PRs — and wait 91% longer for them to be reviewed. DORA data shows that for every 25% increase in AI tool adoption, team stability drops 7.2%. This is Amdahl's Law applied to software delivery, and the bottleneck isn't where most engineering leaders are looking.

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21 Apr 2026 · 9 min read

agentic engineering

Is Vibe Coding Dead? The Shift to Agentic Engineering in the AI Era

One year after Andrej Karpathy coined 'vibe coding', the industry is moving on. Discover why vibe coding fails at scale — context collapse, cognitive debt, zero system design — and how agentic engineering is emerging as the professional discipline for AI-first software development.

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