Petrodollar discourse tends to annoy me because people tend to get cause and effect confused.

The dollar isn't strong because oil is traded in it. Oil is traded in dollars because the dollar is strong. What makes the dollar strong? The US military and, at least up until now, the US essentially guaranteeing global maritime trade. Oh and the US also being the world's arms dealer. Why this is such a huge strategic blunder is because the US has proven itself unable to militarily open the Strait of Hormuz. This should surprise precisely no one. The Joint Chiefs knew it. The Intelligence community knew it.

Let me put this another way: you could make all oil trades in euros tomorrow and pretty much everyone would still hold dollars and convert to euros as needed. People don't understand this so you get silly conspiracy theories around, say, the Iraq War being started because Saddam Hussein was starting to trade oil in euros.

Let me give you a concrete example of this all in action. Iran has threatened to charge tolls to pass through the Strait and they wanted to be paid in crypto, largely to avoid having their funds frozen (as has already happened) because the US has that kind of control over the financial system. But that's still a problem because all US companies and any financial institution that wants to main access to the global financial system isn't legally allowed to trade with Iran, even in crypto. My point is that all of this could be traded in crypto and it wouldn't matter. The "petrodollar" would still rule.

You say "people tend to get cause and effect confused" and then unironically follow that up with:

> What makes the dollar strong? The US military

The US military and the dollar are strong because the US economy is strong.