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Learn to Estimate in Ranges
Someone asks how long it will take. You say six weeks, because saying anything else feels evasive. Six weeks then becomes a promise you never actually made, and the trouble starts there.
Subhajai Benchadhikul
Technology Polymath.
Where Creativity meets Engineering · Bangkok, Thailand.
GCP Cloud Architecture · Adobe Commerce · Enterprise Digital Transformation · Microservices · Bangkok
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Your Backtest Is Lying to You, and Your AI Agent Believes It
An AI trading agent can search a million variations of a strategy in an afternoon. That is exactly the problem. When the search is cheap, the beautiful equity curve stops being evidence and starts being an accident you paid for.
Ask for the Constraint, Not the Requirement
Requirements describe what someone wants. Constraints describe the shape of the world they are actually operating in. Learning to ask for the second one is the fastest way to stop building the wrong thing beautifully.
The Eval Gap: Nobody Can Tell You If It's Working
Most teams shipping AI features cannot answer the simplest question about them — is this actually good? Evaluation is not a testing chore. It is the definition of correct, and writing it down is the hardest and most valuable work in the project.
Stop Asking for a Meeting. Ask for a Decision.
Most requests for a decision arrive as a meeting invite or a wall of context. A one-page brief gets you an answer faster, and quietly improves how people see your judgement.
Who Is Your AI Agent Logging In As?
Most organisations have given their AI agents real power and borrowed credentials. The identity question sounds like plumbing, but it decides whether an agent is auditable, revocable, and safe to expand.
The Pre-Mortem: A Five-Minute Habit Before Any Big Decision
Before you commit to a big call, spend five minutes imagining it already failed and writing down why. It surfaces the risk you were quietly ignoring.