Mm - hmm.
but  but , um , just seeing that each of these things didn't make things better may not be enough. It may be that they 're making them better in some ways and worse in others ,
Yeah. Mm - hmm.
or increasing insertions and decreasing deletions , or  or , um , um , you know , helping with noisy case but hurting in quiet case. And if you saw that then maybe you  it would   something would occur to you of how to deal with that.