In Monday's Religion Moment, Katy Scrogin discusses the Carnival season.

In part 1 of our interview with Phyllis Tickle, we explore the idea that our culture has been shaped by roughly 500-year cycles, which have helped define our major religious traditions for the past two millennia. According to Tickle, our present epoch - referred to by some as "The Great Emergence" - has the potential to yield a new Christianity distint from Protestantism, Catholicism, and Orthodoxy. Also on the program, Katy Scrogin reviews a new biography of philosopher Alain Badiou by Hollis Phelps.