Comment by bob1029

> use an indoor rowing machine

Humans evolved to run but rowing is much better in many ways.

I'm up to 1.3 million meters this year so far (C2 Model D / PM4). I've missed zero days since the first of the year. The only way this is possible is because the impact is whatever you want it to be. You can scale all the way to ~zero if you are having a really shit day and just need the mental checkmark. You can throw the MacBook on a chair next to the rower and watch some dopamine slop to keep you distracted for the 30 minutes. Whatever it takes. Achieving 500 calories/hr is not difficult even if you've never looked at one of the machines before.

Going outside in any capacity has a lot higher physical/mental barrier. Other erg machines like treadmills and stationary bikes are something that my particular monkey brain doesn't like as much for whatever reason.