You know, the caps, swabs, if you remember all the shortages around the world. but i think with that sense of purpose, all of our vendors also came together and rallied themselves and put on extra shifts. let me ask you this, steve, technology, it's constantly evolving. how much are you investing in al to help with things like medical screening and and how would that work? we've been investing a fair amount in al, or really, i'd go back to what we called machine learning. and if you think about a lot of what we do and a lot of what health care can do is pattern recognition. so, for example, in...