David Nelson breaks down United Airlines' (UAL) earnings report and explains why the stock is trading lower. Nelson attributes the miss to various factors beyond the company's control, including fuel costs, geopolitical events, and aircraft delivery delays. However, he remains optimistic about the long-term potential of the airline industry, particularly with the increasing adoption of A.I., which he believes could lead to significant cost savings and increased productivity in areas such as logistics, data, and crew management.