Sure, I'd still stand by my statement making that substitution. I don't think the ecosystem humans specifically depend on can be boiled down to a single metric.

Sure, I'd still stand by my statement making that substitution. I don't think the ecosystem humans specifically depend on can be boiled down to a single metric. We've leaned extremely analytical in modern times but doing so puts us at serious risk of missing the forest for the trees. We have a habit of trying to quantify everything and missing the fact that doing so loses context and greatly increases the risk of over confidence in our ability to understand and intervene with a complex system.