Nowadays, we have technology that's improved so that we can bring people back to life. In fact, there are drugs being developed right now — who knows if they'll ever make it to the market — that may actually slow down the process of brain-cell injury and death. Imagine, you fast-forward to ten years down the line and you've given a patient whose heart has just stopped this amazing drug, and actually what it does is it slows everything down so that the things that would've happened over an hour, now happen over two days. As medicine progresses, we will end up with lots and lots of ethical questions.