Oops accidentally hit send:
You made up a hypothetical of an extreme outlier that likely does not exist. “18-minute 5K runner that runs 8min/km at 70%” I haven’t seen anyone post anything that extreme. Then everyone told you on principle why that would be okay (if it were real). Your defense was essentially “nah, I don’t like that answer”
i actually would agree with some of your implied points that if someone has no clue what their maxHR is they obviously shouldn’t be using that to set their easy pace. No one has addressed that because…no duh, should we also confirm That their using a GPS and not just guessing their pace? Similarly there’s enough margin of error on maxHR and the simplification of the 70% rule that if you could run 6min/k at 73% of what you think your max HR vs 8min/k at 69%. I would actually agree that that’s probably okay. But again ridiculous hypothetical that likely doesn’t help anyone.