No. So there 's  there 's  uh , there 's a whole range of things  there 's a whole array of things ,  that people do on this.
Hmm.
So , um , the , uh  the big arrays , uh , places , uh , like uh , Rutgers , and Brown , and other  other places , uh , they have , uh , big arrays with , I don't know , a hundred  hundred mikes or something.
Xerox.