The Gist - Why Dylann Roof Picked Those Two Flags

Today on The Gist, a closer look at the apartheid-era South African and Rhodesian flags worn by the Charleston suspect, Dylann Roof, with vexillologist Ted Kaye. Plus, Richard Thaler offers common-sense ideas found in behavioral economics. He’s the author of Misbehaving: The Making of Behavioral Economics. For the Spiel, an explanation of the Jexclamation point! Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus. 

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The Gist - Go-Go Wearable Gadgets

Does Congress care about the political interests of regular American citizens as much as those of their affluent donors? Today on The Gist, we speak with Princeton politics professor Martin Gilens about a study in Perspectives on Politics that makes Congress seem less populist than the populace. He’s the author of Affluence and Influence. Plus, we’ll ask Jill Duffy from PC Magazine how fitness trackers will inevitably change our relationship with health care. She’s the author of Get Organized: How to Clean Up Your Messy Digital Life. For The Spiel, Mike chatted with Kim Kardashian West the other day. Here are some of the products Jill mentioned in her conversation with Mike: Athos: Electromyography-sensing pants that measure your muscles as they fire during a workout.   BSXinsight: A compression leg sleeve that measures lactate threshold; much better than having a blood test every three minutes while running on a treadmill! HealthPatch MD: No need to stay in a hospital when you can be discharged with this adhesive patch that monitors your vitals for docs to watch remotely.  InsideTracker: A system that lets you track your blood test results and offers advice for maximizing your health through diet and lifestyle changes. Mio Alpha 2: A wrist-worn heart rate monitor and runner’s watch—the one that pissed off Mike for telling him his heartrate is 71 beats per minute. Spire: A wearable “stone” with a clip that measures breathing and alerts you when you’re tense. Stemp: An adhesive bandage that reads temperature; great for wriggling babies!  UBiome: An at-home, mail-in testing kit for quantifying the bacteria in your gut. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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The Gist - Deep Dive Into a Defining Institution

Was racism the progeny of the decision to enslave black people? Today on The Gist, the duo behind a new Slate Academy tell us what they’ve learned so far in a summerlong inquiry into a vast and complex aspect of American history. Mike speaks with Slate’s Jamelle Bouie and Rebecca Onion about a podcast series called The History of American Slavery. For The Spiel, is Rachel Dolezal insane? Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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The Gist - Google’s Loony Balloons

Today on The Gist, an improbable Google experiment is still afloat. Will this “loony” idea help expand Internet access around the world, or just be a boon to fuzzy sock manufacturers? Slate’s Will Oremus explains. For The Spiel, we track the use of "the" before "Magna Carta." Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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The Gist - My Friend Became a Staunch Anti-Vaxxer. Now What?

Today on The Gist, we dig some of our favorite segments out of the vault. Mike Pesca is still away taping Wait Wait … Don’t Tell Me, which you can hear this coming weekend online or on NPR stations across the country. First up, Mary Pilon shares the real history of the board game your family never finishes. She’s the author of The Monopolists: Obsession, Fury, and the Scandal Behind the World’s Favorite Board Game. Then, should you ever attend a child’s birthday party in a hazmat suit? Slate’s Emily Yoffe joins us for a Post-Prudence Impact Statement with past letter writer “The Shot Is Safe.” For the Spiel, impassioned nominations for the Toy Hall of Fame. This segment was taped in 2014, and since then the Rubik’s Cube, bubbles, and little green army men have all been inducted. Today’s sponsor: Volvo. Have a month’s payment on Volvo, and spend your summer doing the things that matter to you. Plus get up to five years full coverage, including wear and tear. Go to volvocars.com/us. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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The Gist - Tour Guide for The Memory Palace

James Holmes is mounting an insanity defense for his trial in the 2012 movie-theater killings in Aurora, Colorado. But what connection does that tactic have with the actual medical understanding of mental illness? Today on The Gist, Fordham’s Barry Rosenfeld explains the challenge of diagnosing a “guilty mind.” For the Spiel, we ask Nate DiMeo to share an episode of his podcast The Memory Palace about Coney Island’s Dreamland amusement park, and his approach to revisiting history. Today’s sponsor: Stamps.com, where you can buy and print official U.S. postage right from your desk using your own computer and printer. Use the promo code THEGIST to get a no-risk trial and a $110 bonus offer. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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The Gist - Sleeping: You’re Doing It Wrong

Today on The Gist, how common is the phenomenon of the historic genius or eccentric CEO who needs less sleep than the rest of us? Could more of us benefit from less sleep? Mike asks Maria Konnikova of the New Yorker to open our eyes about sleep deprivation, the latest in a series we call “Is That Bulls--t?” For the Spiel, Burwell or not so well. Today’s sponsors: Citrix GoToMeeting. When meetings matter, millions choose GoToMeeting. Get a free 30-day trial by visiting GoToMeeting.com and clicking the “try it free” button. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.    

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The Gist - Grasping for the Ferguson Effect

In the Wall Street Journal editorial “The New Nationwide Crime Wave,” Heather Mac Donald argues that spikes in inner city crime are the consequence of “The Ferguson Effect” on police. Today on The Gist, Mike Pesca disagrees. Mac Donald is the author of Are Cops Racist, and at the Manhattan Institute scholar.  For the Spiel, is edible normcore taking it on the chin? Today’s sponsor: Stamps.com, where you can buy and print official U.S. postage right from your desk using your own computer and printer. Use the promo code THEGIST to get a no-risk trial and a $110 bonus offer. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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The Gist - Sharon Van Etten, Banter Mentor

Today on The Gist, listener Dillon Kondor explains why he finds himself consistently embarrassed by his own stage banter. Can indie rock singer-songwriter Sharon Van Etten save the day? They’ll join us in studio for a thoughtful conversation about what’s involved in being a frontman who’s confident in their vulnerability. For the Spiel, the latest Duggar-based revelation. Today’s sponsor: Squarespace, the easiest way to create a beautiful website, blog, or online store. Use the offer code GIST at checkout to get 10 percent off. Squarespace. Build it Beautiful. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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The Gist - His Dunkological Clock Was Ticking

When Asher Price reached his mid-30s, he realized it was his last chance to learn how to dunk a basketball. Today on The Gist, we’ll visit the West 4th Street Courts to learn about his training regimen and the symbolism behind a slam dunk. He’s the author of Year of the Dunk: A Modest Defiance of Gravity. For the Spiel, debating about debates. Today’s sponsor: Squarespace, the easiest way to create a beautiful website, blog, or online store. Use the offer code GIST at checkout to get 10 percent off. Squarespace. Build it Beautiful. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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