I posted this in another comment covering the Guardian's coverage, but figured I'd post here too in case it got lost as this seems like a more lively discussion

I posted this in another comment covering the Guardian's coverage, but figured I'd post here too in case it got lost as this seems like a more lively discussion. Is there any indication what a 'tipping point' or irreversible positive feedback loop would look like once it had started? Would it resemble a graph such as in TFA? Or would perhaps not be an irreversible first swoop, so to speak, but instead oscillate deeper each time? Unknowable and unlikely, perhaps, given that it's not happened before. But a part of me wonders what it looks like when we get to the point where the charts and graphs don't go back up again.