Delta: AI Engineering

You read about AI every morning. Newsletters, threads, release notes. By Friday, almost none of it is left. The habit is not the problem. The format is. Reading something once is the least effective way to learn anything, and an entire content economy sits on top of it. Delta is the other half. Thousands of short lessons on what actually changed, each ending in a question you have to answer. Being asked is what makes it stick; reading never did. Ninety seconds, usable in a queue. WHAT A CARD LOOKS LIKE Two or three paragraphs, then a question. Not a quiz question. Predict the output. Spot the bug in the IAM policy. Pick the cheaper option and say why. Name the tradeoff the benchmark table is hiding. Then the explanation, which is the part that matters, written by someone who has shipped the thing rather than read about it. Every card links to the source it was written from. We never…