I take your point. I'm not disputing the existence of fatigue, but rather on whether we know enough about it to quantify it and to use it as our guiding princip

I take your point. I'm not disputing the existence of fatigue, but rather on whether we know enough about it to quantify it and to use it as our guiding principle for epidemic response. And I think the the Singapore approach here is the right way - additional measure can be taken in order to shore up public behaviour as people's behaviour start to revert. In any case the UK public by-and-large is behaving much less seriously than Singapore. Having just been back from Asia on a trip and working from home as a result, I still have people asking me as of a few days ago whether all of this talk in the news is an overreaction.