Programming the Loop — ArticlesTechnical opinions, analysis and commentary by Garry Meaburn.https://programmingtheloop.com/en-GBWhat Actually Happens When You Press Enter? How Generative AI Workshttps://programmingtheloop.com/articles/how-genai-works/https://programmingtheloop.com/articles/how-genai-works/Your prompt is cut into tokens, each token becomes a vector of 1,024 numbers, 28 transformer layers rework those vectors, and out comes a probability for every possible next token. Pick one, add it on, repeat. I measured each step on a small open model: cat sits nearest kitten, 42 of 448 attention heads link "it" to "animal", and it confidently named the capital of a country that doesn't exist.Sat, 31 Oct 2026 12:00:00 GMTI Fixed My Testing Tool. Did It Find More Bugs?https://programmingtheloop.com/articles/fixing-my-tool/https://programmingtheloop.com/articles/fixing-my-tool/After fixing the problems I found, WebMCP Resilience caught 15 of 19 timing bugs, up from 11, with no false alarms on correct code. Each fix earned its place, and one introduced a bug of its own that the rerun caught.Thu, 29 Oct 2026 18:00:00 GMTI Built a Tool to Find Timing Bugs. Does It Find Any?https://programmingtheloop.com/articles/does-my-tool-catch-anything/https://programmingtheloop.com/articles/does-my-tool-catch-anything/An ordinary check caught none of 19 timing bugs. WebMCP Resilience caught 11, with no false alarms on correct code, and showed me exactly where it falls short.Thu, 29 Oct 2026 12:00:00 GMTBuilding GenAI on a Tight Northern Budgethttps://programmingtheloop.com/articles/tight-northern-budget/https://programmingtheloop.com/articles/tight-northern-budget/How I keep experimenting with GenAI without spending a fortune.Sat, 24 Oct 2026 09:12:00 GMT