@Trobealone I don't think nudging is possible on a global scale. And I don't underestimate Covid: it can kill, I think I probably had it in 2019, when the narrative was still "it's nothing to worry about", and I remember how ill I felt.
What I think is really dangerous is when the government or the media takes one side of the argument, and presents it as 100% fact, and the other side simply cannot be heard at all, and is labelled as "dangerous misinformation". This happened a lot: nobody was allowed to say that lockdowns were harmful, while they were happening. When people find that they are "cancelled" if they try to argue their side, this accelerates the conspiracy theories. As far as they are concerned, if the government is doing this, they are "up to something", they are silencing anybody who does not agree with them, a dictatorship is on the way; and being labelled as "conspiracy theorists" makes them all the more convinced they are right. I had social media posts deleted when I pointed out the "dark red weather maps" used now, compared to ones showing similar temperatures when they happened decades previously. It is the not allowing these things to be heard that makes them dangerous, in my view.
If during 2020 and 2021, we had heard from some scientists arguing against lockdown, to balance the debate, I would not be so suspicious of government. But we hardly heard from any; they were not invited to speak, or they would be quickly silenced if they started to say anything against lockdown. You could watch it happen in BBC interviews.