OK.
Yeah. Um , but , u uh , yes. No , it is interesting. And the other thing is , I mean , there 's two sides to these really small , uh , gradations in performance. Um , I mean , on the one hand in a practical system if something is , uh , four point four percent error , four point one percent error , people won't really tell  be able to tell the difference. On the other hand , when you 're doing , uh , research , you may , eh  you might find that the way that you build up a change from a ninety - five percent accurate system to a ninety - eight percent accurate system is through ten or twelve little things that you do that each are point three percent. So  so the  they  they  it 's  I don't mean to say that they 're  they 're irrelevant. Uh , they are relevant. But , um ,  i for a demo , you won't see it.
Mm - hmm. Right. OK.
Yeah.