That’s all oil.

so Haber-Bosch which is very energy intensive, fueled by fossil fuels. So in a way, the fossil fuel supply chain over the last century is another black swan (it wasn't a singular moment, but a systemic shift and adoption).

If we developed the will to sustainably mitigate its toxic by-products including plastic, that would be another nice black-swan for the future. Though it also won't be singular moment but a systemic change that is hard to notice.

Haber–Bosch is already in there, and is a great part of it.