This is something I’ve done in a loose fashion with basic intervals, like Nx3min, Nx4min, Nx8min, Nx10min, Nx20, Nx30, 20 or 30 Min TT, etc. I have a journal of how I’ve progressed on those types of workouts.
I assume many have also gotten to the point where they looked at the workout style, TSS, IF and duration to estimate difficulty. As was pointed out, this can definitely not line up with expectation.
Systematically quantizing the workouts is a nice step, and also critical for any automation. It also sounded like from the podcast they developed an algorithm for it rather than a data-driven model, which is also nice. My one concern would be if their model can robustly pick up differences within the lower range of ramp rates, say .3 in workout level. On that, it is important to sanity check the workout levels as we progress through. They’ll surely pick up on that over time though if there is an outlier workout that people have low compliance on now that things are more organized with progression of workouts.