The human brain being an ornery thing, our first response is probably to find exceptions. And there are undoubtedly lots of them…although it can be a little hard to tell because when you think of some big problem you’d want solved behind closed doors â€” The recent US/Russia nuclear arms reduction? A path to peace in the Middle East? â€” you can’t tell if maybe it were done in public, we would have come up with something better or faster. Still, there have to be places where this aphorism is wrong.
So what? The amazing thing is that it even looks plausible, much less that it’s proven itself to be true in some important instances. That is a big BIG change.