Aside from covid of course…
My prediction is a texas-style grid failure but with a wider scale. Where I live, the electrical infrastructure is crumbling and there were a number of 1-2 day long outages this year which is new. Also a generally very poor area so little resources or motivation to fix or reinforce anything.
Most efficient system. My fiancee is a union foreman for a mechanical general contractor. They can’t get anything they need. Every day I hear “so my (whatever is today’s crisis) is going to be delayed indefinitely. They said don’t call us, we’ll call you.”
Every single day. I’m unemployed, counting pennies so I can stock up on the medical supplies I need l, because I know for a fact that supply chain will fall apart soon.