In a presentation on @UNRISD thresholds- and transformation-based sustainability indicators I just gave, I point out that thresholds / limits could be viewed as leverage point 12 on Dana’s list ("Constants, parameters, numbers” — or #2: "mindset of paradigm".
https://twitter.com/bethsawin/status/1349015069070413828
@UNRISD Here’s the slide I use to illustrate this difference in leverage points. 
@UNRISD [S]ustainability indicators should be related to carrying capacity or to threshold of danger…
Tons of nutrient per year released into waterways
means nothing to people.
Amount released relative to [what they] can absorb w/out becoming toxic/clogged begins to carry a message
Tons of nutrient per year released into waterways
means nothing to people.
Amount released relative to [what they] can absorb w/out becoming toxic/clogged begins to carry a message
We tie this back to Dana’s inspiration, Thomas Kuhn, who put the term “paradigm shift” (or “change” is his parlance) on the map in The Structure of Scientific Revolutions (1962).
So we see a thresholds mindset / paradigm being “revolutionary” in the Kuhnian sense.
So we see a thresholds mindset / paradigm being “revolutionary” in the Kuhnian sense.
Btw, this line of thinking resulted from an exchange here in the twittersphere with @jenandersson1
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