ABOUT THE JOURNAL

Who writes this

My name is Jonas Kuiler. I'm a software developer, and I've been lifting seriously for about four years. I'm not a coach. I don't have a certification or a degree in exercise science. What I have is the same instinct that makes me a decent engineer: I can't leave a system alone until I understand what it's doing and how to make it do more.

That instinct is what got me here. Somewhere in my first year of training I noticed that every program I'd ever followed was, underneath the motivational packaging, an algorithm. Add 2.5kg when you hit your reps. Back off when you stall. Run this many hard sets per muscle, then deload. These weren't workouts. They were rules, the same input-output logic I write all day. So I did the obvious thing for someone who min/maxes for fun: I tried to read the algorithm, figure out why it worked, and tune it to move my own numbers faster.

That turned into a small obsession. I read the research instead of the influencers. I logged a lot of my workouts, not all of them, I'm being honest. I tried to make decisions from what the log actually said instead of how I felt that afternoon. Over the last four years my Deadlift went from 60kg to 160kg at roughly 96kg. Those aren't elite numbers, and they're not supposed to be. The point isn't the plates; it's that I can tell you why they moved, because I was watching the signals instead of trusting the vibes.

Here's the thing I kept running into: strength training is a data problem dressed up as a discipline problem. Most people don't stall because they lack willpower. They stall because they're running a fixed plan against a body that changes week to week, with no feedback loop to notice. Recovery isn't constant. Your numbers carry information. A program that can't read that information is just a guess with a confident cover.

That's what this site is about. Everything here treats training as a system you measure, adjust, and repeat. Feedback loops, not faith. It's written for the kind of lifter I went looking for and couldn't find enough of: someone past the beginner phase, comfortable with numbers, and tired of being sold certainty by professional fitness trainers.

I'm still running the experiment on myself. I'll show you what I find.