Look closely at almost anything and you’ll find data—lots of it. But when you push past the calculations, what are all those numbers really saying about who we are and what we believe? CNN’s Harry Enten is on a mission to find out. This season on Margins of Error, Harry looks at why belief in ghosts is on the rise, the case for letting states decide whether to acknowledge Daylight Saving Time, and why human composting—not cremation—may be the answer to a climate friendly death.