Thanks for an insightful article; yes, a soufflé, or anything baked that rises fast runs the danger to deflate quickly if not done well, e.g. Salzburger Nockerl.

From Gaya Herrington's 2020 "Update to limits to growth - Comparing the World3 model with empirical data" it looks like the world is more on track with the "business-as-usual-2", i.e. "business-as-usual" in overdrive or "comprehensive technology" scenarios. But as she says: "Both scenarios thus indicate that continuing business as usual, that is, pursuing continuous growth, is not possible. Even when paired with unprecedented technological development and adoption, business as usual as modeled by LtG would inevitably lead to declines in industrial capital, agricultural output, and welfare levels within this century" . I reckon this downturn will be a consequence of delayed negative feedback as a function of decreasing EROIE for fossil fuels and renewables (decreasing ore grade).