Exactly my experience. After my last couple races or long workouts, my HRV dipped a few ms for a few days before coming back to normal. In this case, it’s not telling me anything I don’t already know. But in other instances, a lower HRV would make me consider slowing down a bit.
I mean, he was a professional athlete, so that’s kind of the point he was making. As you progress in fitness, it sucks less which means your body has adapted and you can go faster/ harder/ longer.
I have a limited background in computing hardware, but I really appreciate the thought he puts into explaining both the why and how.
His 8-bit CPU videos are just amazing, and even at ~1 Hz, it’s incredible to think about what all happens. And then to think about going billions of times faster…