i'm sure they could exist. what you want to do is have the patient's time be slowed down, while everyone around them moves at what we would call real-time. in that way, this person has, if you will, bought time. >> so, it's not a stop button as much as it is a slow-forward button. >> well, in the case of what we're talking about in mammals, we're thinking of a slow-forward button, a dimming. >> is the premise if we can buy doctors or health care professionals a little bit more time -- >> the whole emergency medicine, you know, having it take -- it's a time-dependent thing, and somebody either has enough time or they don't. >> enough time. but there's something else. for roth the fight against death is personal. it is grounded in a family tragedy. what happened to your daughter? >> she passed away when she was 1 after spending a month in the icu. following heart surgery. >> do you think that had an