and I really hope that this time we'll get it right. But there were failures in the past where people used the technology in suboptimal ways and we don' t want it to happen again. One has to make sure that we have appropriate and sufficient data for development, validation and testing, and that we're solving actual clinical problems. At the end of the day, one thing to take away is that even if, as a clinician, it can be hard to understand exactly how a CNN arrives at its diagnosis, it can still be a useful tool.