Off topic, but for what it's worth I'm getting myself a rowing machine to try and alleviate my running cravings, especially as winter is coming. I'm not sure if it will be able to reproduce the feelings I get from running as I haven't done rowing enough, but running seems to be the only thing I've found that puts me into this flow state. Cycling is too limited, legs only, HR doesn't get high enough, so hopefully rowing is better due to it being full body. Rowing won't be outside and I won't be physically moving around so that may be the downside. But the metrics to achieve should be much more consistent and comparable compared to if there's many weather changes otherwise, so looking forward to seeing progress there.