That's hilarious, but is it a currency crisis or is it just trading down a bit?
He's saying that a devaluation won't kill the country because the debt is denominated in Pounds.
That seems like a strange clarification. If he's predicting the Pound wouldn't decline - he'd say that.
Not say that if it does decline, it won't be a problem...
That implies it's a possibility. It just won't cause a crisis if it happens.
https://twitter.com/paulkrugman/status/1573656086716071937
"The moron risk premium has now been priced in". That is, he believes the currency depreciation is substantially over.
He is also saying the thing you're reading him as saying too though.
But you can just feel his ego through his tweets "I'm supposed to know something about currency crises — I did invent the academic field!"
It doesn't follow that he can make money trading it.