As soon as Alternate Realities publishes, Zach Mack calls his dad to hear his reactions to the series. The conversation takes an unexpected turn, launching them into another year-long experiment.To listen to this series sponsor-free and support NPR, sign up for Embedded+ in Apple Podcasts or at plus.npr.org.To manage podcast ad preferences, review the links below:See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy