https://livgens.com/blog/ How anything real is represented exactly, and notes on the field around it. en-gb https://livgens.com/blog/wearables-and-the-truth/ https://livgens.com/blog/wearables-and-the-truth/ Wed, 21 Oct 2026 08:00:00 +0000 Independent studies in 2025 measured consumer rings and watches against ECG, polysomnography and laboratory VO2max. Some readings are close to the reference and some are far from it, which is why every number a wearable shows should carry its own grade. https://livgens.com/blog/the-data-you-need-was-never-collected/ https://livgens.com/blog/the-data-you-need-was-never-collected/ Wed, 21 Oct 2026 08:00:00 +0000 Public text is running out, robot data is scarce, and models fed their own output lose the rare cases first. The way through is to represent real things exactly, run them forward, and hold every result to the world. https://livgens.com/blog/synthetic-data-in-2026/ https://livgens.com/blog/synthetic-data-in-2026/ Wed, 21 Oct 2026 08:00:00 +0000 Synthetic data became ordinary infrastructure in 2025, from open post-training sets to world models for physical AI. The research on model collapse says where it breaks, and points to generating from a measured representation of the thing rather than from a model of the data. https://livgens.com/blog/restoring-sound/ https://livgens.com/blog/restoring-sound/ Wed, 21 Oct 2026 08:00:00 +0000 Taking noise out of a recording, balancing it, matching its tone and setting its loudness are acts of representation: each one claims to know what the sound really was. Looper makes those claims inside Ableton Live, and shows what it changed. https://livgens.com/blog/representing-a-garment/ https://livgens.com/blog/representing-a-garment/ Wed, 21 Oct 2026 08:00:00 +0000 A garment is a body, a pattern, a cloth and the way they settle together. Representing it exactly means carrying every one of those as a measurement, and saying plainly which parts have been checked against real cloth. https://livgens.com/blog/measuring-a-body/ https://livgens.com/blog/measuring-a-body/ Wed, 21 Oct 2026 08:00:00 +0000 Wearables report some things well and others badly, and every reading carries noise. The question that matters is whether a change you made is working for you, and that can only be answered on your own measurements, at your own measurement error. https://livgens.com/blog/fashion-goes-three-dimensional/ https://livgens.com/blog/fashion-goes-three-dimensional/ Wed, 21 Oct 2026 08:00:00 +0000 3D design and digital sampling spent a decade making garments look right on a screen. European rules on textiles now ask each garment to carry facts about what it is made of and how it ends its life, which raises the value of a 3D garment that is a measured record rather than a picture. https://livgens.com/blog/capturing-materials/ https://livgens.com/blog/capturing-materials/ Wed, 21 Oct 2026 08:00:00 +0000 In 2025 and 2026 graphics settled on shared ways to describe materials and captured scenes, and generative models learned to paint physically based materials onto any mesh. The formats and the generators are ready; what decides whether a material is true is still a measurement. https://livgens.com/blog/bodies-in-three-dimensions/ https://livgens.com/blog/bodies-in-three-dimensions/ Wed, 21 Oct 2026 08:00:00 +0000 Open body models became far broader in 2025, covering every age and separating skeleton from shape, and recovering a body from one photograph is now routine research. Fit, sizing and health are decided in centimetres, which makes the measured body, with its error stated, the representation that matters. https://livgens.com/blog/audio-ai-2026/ https://livgens.com/blog/audio-ai-2026/ Wed, 21 Oct 2026 08:00:00 +0000 Generated music now makes up more than half of the new tracks arriving at one major streaming service, and the labels have moved from suing the generators to licensing them. The harder problems left are provenance and measurement, and both come down to knowing exactly what a sound is. https://livgens.com/blog/a-little-real-data-goes-a-long-way/ https://livgens.com/blog/a-little-real-data-goes-a-long-way/ Wed, 21 Oct 2026 08:00:00 +0000 Learn from a checked simulation first, then from a few real measurements, and each measurement counts for more. A registered Living Worlds study on unmetered power feeders shows how much more, where the advantage ends, and what happens when the simulation is wrong. https://livgens.com/blog/a-coding-agent-in-the-browser/ https://livgens.com/blog/a-coding-agent-in-the-browser/ Wed, 21 Oct 2026 08:00:00 +0000 Coding agents now write a great deal of code. The scarce thing is evidence that the code works. Livgens Programmer reads first, shows every change, runs the tests and reports what passed and what did not, in the terminal and in a browser workspace that keeps your work between visits.