In a special podcast bonus, co-host Hanna Rosin checks in with Bill Millar, who we met in Season 2's "Flip the Script." They talk about dating, cats, and how love can look different for everyone. Listen to the original episode here: http://apple.co/2x0aWE3.<br/><br/>Learn more about sponsor message choices: <a href="https://podcastchoices.com/adchoices">podcastchoices.com/adchoices</a><br/><br/><a href="https://www.npr.org/about-npr/179878450/privacy-policy">NPR Privacy Policy</a>

BONUS: Catch-Up with Max Hawkins

Unseeable forces control human behavior and shape our ideas, beliefs, and assumptions. Invisibilia—Latin for invisible things—fuses narrative storytelling with science that will make you see your own life differently.