This document discusses real-time analytics and provides some cautions about its limitations. Real-time data can be empowering by providing a rich, constantly updating data set. However, filtering the data in real-time to view specific user paths through a site often results in small data sets or empty views. While real-time data gives a sense of urgency, decisions generally cannot be made or designs changed in real-time based on limited data. The document recommends basing real-time needs on an ability to enact changes, not just on data availability.