I think it's a new era that we're living in, and i don't know that our scientists have completely caught up with it. 18 months throwing yourself at apendemic is a long time. And like everybody else, i think you think about where you are in your life and what you want to do next. Am i had the opportunity to work for skull foundation? It's really a compliment to what i've done. I would also say that there is a level of scrutiny of science that is just expedentially more than in other public health emergencies.