 think is so important to remember is that even when you have some people now that say well yes you know in with hindsight and after the event you know now we realize that drives me we knew it at the time yes we knew all of it at the time we knew that the mask i mean i've been back in march reading a study that they did um i think it was i can't remember the exact location but they tested that the the the way the particle the virus particles travel yes and