I think the rate of attrition matters. Too little change and you get stagnation -- you do need that ongoing renewal you call out, and the incentive to create go

I think the rate of attrition matters. Too little change and you get stagnation -- you do need that ongoing renewal you call out, and the incentive to create good processes. There is a tipping point though, where attrition isn't renewal, it's erosion. It's the difference between "small fires that clear out the undergrowth and a few large trees" vs "large fires that denude a hillside that then destabilizes into a mudslide."