Rewind 02 – What I Threw Away
from RAMmageddon – DigitalWasteland Hosted by Jens Klasen
Three weeks after introducing IDUN, his personal AI fitness coach, Jens deleted a working part of it: the Yazio integration, replaced in four days by his own nutrition module. A well-tested training model turned out to be wrong, self-soldered sensors gave way to ready-made hardware, and a large share of the new code replaced things that already worked. Jens explains why that is the real news, and what enterprise IT can learn from the permission to throw things away. In this episode Why tests check whether the code does what you wanted, but not whether you wanted the right thing How fifteen recorded sets in the gym exposed a flawed load model for rotating movements Why buying the more expensive, ready-made sensors was the strategic choice, and how an unchanged radio protocol made a full hardware switch a side note Two independent measurements per rep: wrist sensors for load, the iPad camera with seventeen 3D joint points for execution Three lessons for IT: cutting old habits is not failure, a proof of concept is a learning tool, and some investments only pay off later Building has become cheap. Judging hasn't. Originally published in German on September 14, 2026: https://klasen.ai/briefing/was-ich-weggeworfen-habe/ English version: https://klasen.ai/en/briefing/was-ich-weggeworfen-habe/ Voices are AI-generated (Jens's voice is a clone of his own). Content and analysis by Jens Klasen.
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