what different humans do so we're not performing better than a human does so there is no superhuman performance but actually we're doing as well as a human does and I think that's quite natural because seems to me quite hard to get superhuman performance from from training data which actually in some sense is quite flawed so you can do this quite easily so there is no real challenge here we can just a talk what what many of you guys have done in envision what is the challenge is that actually the imaging data has a lot of