From microdosing to decriminalizing and investing, many Americans are taking a renewed interest in psychedelics. As states like New York and Michigan consider decriminalizing psilocybin and investors gamble on psychedelic start-ups, Kara revisits her conversation with Michael Pollan from August. They discuss his latest book, “This Is Your Mind on Plants,” which explores the consciousness-altering chemicals of plant medicines like peyote, why the U.S. government waged war on psychedelics and other Schedule I drugs and what’s on the horizon.

“One of the challenges of the next few years is negotiating the drug peace that follows the drug war,” he says.

They also talk about how changing cultural norms around certain drugs may pave the way for better policy and when MDMA therapy might be approved by the Food and Drug Administration.

Kara will be back next Monday with a new episode.

You can find more information for all episodes at nytimes.com/sway, and you can find Kara on Twitter @karaswisher.