Evaluation and method 28 October 2026

My 60 tests were green and the system could not return a positive result

This failure only produces false negatives. Systems that over-claim get caught early. A system that stays silent can be used for years while looking prudent.

Business and strategy 23 October 2026

What becomes a commodity in the AI stack within 5 years (and what does not)

Hire for the layer that does not commoditise: judgement about what to build versus buy, and the ability to evaluate whether what an AI system returns holds up.

AI engineering 19 October 2026

Why I turned a quality report into a CI gate

If you want a quality metric to change a team's behaviour, it has to sit on the critical path of something they already care about. In software, that path is the pipeline.

AI engineering 14 October 2026

The common case should not pay for an inference

In any system with AI, the design question is not which model do I use, but which part of this problem does not need a model at all. It is almost always more than it looks.

Business and strategy 9 October 2026

Energy and compute: the real bottleneck for AI startups

It sounds less interesting than talking about architecture. It is, however, where it gets decided which startups scale with margin and which run out of it, even when the product works.

Governance and risk 5 October 2026

What I learned analysing four security failures that looked unrelated

A considerable share of the real operational risk is not in the model. It is in how the model reaches the machine where it runs, and what controls exist over that path.

Business and strategy 30 September 2026

Estimating an AI project when half the scope is a question

When someone asks you for a date to add AI to a process, they are asking two different things: what it costs to build, and what it costs to find out whether it is possible at all.

Evaluation and method 25 September 2026

I wrote the limitations of my analysis on the same screen as the charts

23 incidents are enough to see patterns and not enough to estimate base rates. If that distinction does not travel with the figure, the analysis produces misinformation with your name on it.

AI engineering 18 September 2026

AI agents in production: the question almost nobody asks

The question when evaluating an agent is not what it can do, but what happens when it is interrupted midway. Partial failure is the scenario no demo shows and the only one that matters in production.

Evaluation and method 14 September 2026

How to tell whether your decision matrix holds up or falls over at the first push

Presenting a winner without saying how far ahead it is of the runner-up hides exactly the information the decision-maker needs. The precise weight at which the recommendation would flip.

Governance and risk 9 September 2026

Switzerland has no AI law — and that sentence is where due diligence starts going wrong

"Switzerland has no AI law" is both true and misleading. The territorial scope of the European regulation reaches whoever puts a system on the EU market, wherever they are incorporated.

Evaluation and method 4 September 2026

Why optimising for MAPE can cost you money without you noticing

Over- and under-forecasting do not cost the same. If you evaluate forecasting tools on MAPE, you are rewarding whichever best optimises a metric that treats both errors as equivalent.