My nephew was busy 18 months ago, shutting down oil refineries. This is a long process (weeks) fraught with risky pressure, temperature and capacity issues - mustn't stop flow here until pressure is reduced there!

Then recently, he's back at work starting them up again.

It occurs to me that the global supply chain has more stages, controls, capacity issues and 'temperature' measures than an oil refinery. And how do we start it up again? Why, everybody twiddles the knobs they can reach randomly.

Perhaps its time for some organizing process control in this world-affecting industry.