peter polmann writes about this a lot. high conflict is a system with interlocking diebolt vocal parts that are self perpetuation liket a motion machine. when you have a big shock that could be a weather event. it could be a death or could be violent or new common enemy like a virus. when you have a shock taken up and temporarily some of those interlocking systems but you have to seize thatou opportunity which is usually leadership of the national or local level. on the one hand i would say that opportunity was not cease particularly at the national level. lots of barriers around the world and around the country on that. you saw it in some places in some towns and it's also true that the duration of this particular kind of cataclysm is important that it's very hard for humans to sustain that feeling when he goes on and on and there's no chance to recover. it's like war and other things and this is why looking forward to future pandemics it's so important from the site psychological and physiological and biological view to