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Blog

Where I write down what I am reading and thinking about. Mostly AI at work.

August 8, 2026

The black box problem

Something troubles the AI field: a model can predict very accurately and still not say why it concluded what it did.

Lecture Hall
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August 6, 2026

It reads what you do

You have probably felt this: a few minutes into TikTok or Netflix and it has already read you, serving exactly what you wanted, though you never said so.

Lecture Hall
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August 4, 2026

The machine that learned to see

One of the great turns in technology was the day computers began to see. Before that, teaching a machine to recognise a cat meant describing every feature by hand.

Lecture Hall
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August 2, 2026

The few knobs you turn

In teaching machines there is a small distinction I find illuminating about management: between what the machine learns itself, and the few things a person must set by hand beforehand.

Lecture Hall
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July 31, 2026

One session is one round

Many people assume the machine reads through the data once and is done. The reality is the opposite: it studies the same material over and over.

Lecture Hall
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July 29, 2026

The signal thins out

Remember the game of telephone? A sentence whispered through seven people, and by the last one it has gone crooked. Deep networks hit exactly that problem.

Lecture Hall
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July 27, 2026

The momentum you keep

Why do some models get past a hard patch easily while others get stuck halfway? Often the difference is something very familiar: momentum.

Lecture Hall
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July 25, 2026

Knowing what to ignore

What decides whether a cell in a neural network should speak up or stay quiet? The answer says a good deal about how we decide things.

Lecture Hall
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July 23, 2026

Deliberately leaving things out

There is a trick that makes a model stronger and sounds absurd at first: they deliberately switch part of it off.

Lecture Hall
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July 21, 2026

Memorising is not understanding

We have all met the student who knows every exercise in the book by heart and freezes at a question phrased slightly differently.

Lecture Hall
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July 19, 2026

How big a correction

When teaching a model, one tiny dial decides almost the whole result: after each lesson, how much should it change itself?

Lecture Hall
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July 17, 2026

Learning from the error

It sounds backwards, and it is the heart of how AI learns: what makes it better is not the times it guessed right, but the times it guessed wrong.

Lecture Hall
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