Trending highlights the content your people are engaging with right now, so your site can feature the sermon series or article catching fire this week instead of whatever was posted most recently. This article is the closer look at how Rock decides what is trending. Two values shape the calculation, both set on the content collection when you Set Up Content Collections: Trending Window - The stretch of time Rock counts views over. A shorter window reacts fast to what is hot today; a longer one rewards steady, sustained interest.Trending Gravity - How quickly older views lose weight in the math, so a burst of attention three days ago counts for less than the same burst this morning. Together they let you tune trending to your organization's rhythm.