The commenter you are replying to is right. Heritability shows how much of the current variation is genetic in origin, which shows whether the variability of nurture matters within that particular culture. If you want to successfully intervene, it needs to be either in something not very heritable, or with an intervention that is not a significant part of the current landscape of the society. (The fact that outside of context interventions may exist means heritability isn’t a measure of how genetic it is, but that wasn’t Sleeps Furiously’s point.)
Edit: Note, Sleeps Furiously had not replied to spkoc when I saw this and I wrote my response without refreshing.
The commenter you are replying to is right. Heritability shows how much of the current variation is genetic in origin, which shows whether the variability of nurture matters within that particular culture. If you want to successfully intervene, it needs to be either in something not very heritable, or with an intervention that is not a significant part of the current landscape of the society. (The fact that outside of context interventions may exist means heritability isn’t a measure of how genetic it is, but that wasn’t Sleeps Furiously’s point.)
Edit: Note, Sleeps Furiously had not replied to spkoc when I saw this and I wrote my response without refreshing.