You seem to conflate the term sustainability with "degrowth" which is just not the case in the book Thinking in Systems. I'm really curious where you picked tha

You seem to conflate the term sustainability with "degrowth" which is just not the case in the book Thinking in Systems. I'm really curious where you picked that up from? In fact, a non-sustainable system is a system that is very far from any growth because it is about to collapse - only a sustainable system is able to grow, natural and artifical alike.