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The Cost of Architectural Indecision
Delayed architectural decisions cost 3.4 times more to change than explicit decisions. Indecision creates implicit architectures that nobody chose and everybody depends on.
From the Notebook
Notes
Working ideas, observations, and things I learned today.
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Circuit Breakers Are Design Philosophy, Not Just Patterns
Systems with circuit breakers recovered from cascading failures in 23 seconds versus 18 minutes for timeout-only systems. Knowing when to stop trying is architectural wisdom.
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Infrastructure Drift Is Technical Debt With Compound Interest
Infrastructure drift accumulated an average remediation cost of $47,000 per quarter across 3 organizations. The oldest undetected drift spanned 14 months and affected 23 production resources.
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The Ethics of AI Memory: What Systems Should Forget
Two of 4 AI systems audited retained user data indefinitely with no deletion mechanism. AI systems that remember everything create ethical obligations around what they should forget.
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The Carbon Cost of Large Language Models Is an Ethics Problem
Training a single large language model emits 300-500 metric tons of CO2. The environmental cost is an ethical obligation to be managed, not an externality to be dismissed.
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When to Kill a Feature: Ethics as a Product Decision
I recommended killing 3 profitable AI features in 18 months. Each was ethically questionable. The hardest engineering decision is deprecating something successful that should not exist.
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Ethics of AI Cost Optimization: Cheaper Models, Worse Outcomes
Switching to a cheaper model saved $14,000 monthly but degraded accuracy for non-English speakers by 11 percentage points. Cost optimization without equity analysis is incomplete accounting.
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AI Governance Frameworks Are Maps, Not Territories
Organizations achieving full governance compliance still produced ethical failures at 1 per 4,200 predictions. Governance frameworks are useful maps, but compliance is not equivalence with ethical practice.
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The Mythical Person-Month Is Still Mythical
Adding 1 person to a team of 5 extended delivery by 12%. AI tools amplify individual output but widen the coordination gap.
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The Meeting That Should Have Been a Query
34 meetings compensated for broken dashboards. 6 dashboards avoided necessary conversations. Matching the medium to the message is the discipline.