>> yeah. that point is a key one because first of all, there's also -- there's a lot of delta in the country and there's a lot of hospitals -- there's a lot of hospitalization in the country from that delta wave that never sort of subsided, right? we had sort of one and then it was moving northeast. but also you've got these staffing issues. i have already started to hear in new york city like you've got a lot of staff in new york city hospitals that are testing positive. so you have staff constraints there. you write that basically you say you can't surge a circuit that's been burned out. and for frontline providers there's simply no fuse that can fix the facts that they're fried. there's a certain level of constraint that's going to make this difficult either way, even if that real world data's encouraging in terms of severity of illness. >> right. in march 2020 like i wrote we were worried about ventilators. right now i'm worried about nurses. it is a lot harder to make a nurse than it is a ventilator. we can't do it as quickly. we can't do it as well. and a hospital bed is just a bed