This week, we’re bringing back one of our favorite episodes. Listeners Marmie and Ryan want to know — how many times should you shuffle a deck of playing cards? Marmie says three, but Ryan says four or more. The couple places their bets and goes all in with applied mathematician Steven Strogatz and a full house of card-world VIPs. Learn more about your ad choices. Visit podcastchoices.com/adchoices