ML for Cardiology 1: Rahul says at the beginning of the talk that "these ideas really need to make it into practice," and, throughout the talk, highlights several of the key barriers to doing so. Based on the video and our lectures so far, choose one of the barriers Rahul mentions, explain it briefly, then provide additional commentary on your perspective on this barrier (e.g., thoughts on solutions, analogies to other fields, reasons why this barrier might sensibly exist in our ecosystem in the first place, etc.). *