The idea of babies reminds me that since things wear out, sustainability must include some mechanism for renewal. In a complicated world this wouldn’t likely result in entirely faithful replications but versions. And those versions need not prove themselves viable from the get-go but represent potential worth nurturing.
Seems to me sustainability MUST have a mechanism to acknowledge change and and take it on board in order to continue to be. Something in our acceptance of learning embraces uncertainty or at least accepts that we are never completely “done.” (I’m not certain how to explain that:-( )