For millennia, we have tried to put human personalities into neat types, an effort psychology took up early in its history in an effort to legitimize itself. But is the idea of types – which all personality inventories are based on - flawed to begin with? Find out in this classic episode.

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Pop Tarts are a legendary breakfast treat in the United States. They're fruit-filled toaster pastries with very little fruit. But who cares right? It's all about that toasty goodness.

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People who’ve found themselves in life-or-death situations with their endurance at its limit have reported sensing another presence with them, urging them to continue on and survive. No one knows what the heck is going on here but it sure is interesting.

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In 1905, an engineering mistake created a brand new 400-square-mile sea (lake?) in the California desert. People made the most of it at first, but it didn’t take long to become a toxic brew that now threatens the health of anyone in breathing distance.

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Conversion therapy is a misguided attempt by religious zealots to convert people from gay to straight. News flash - it doesn't work. Learn all about this abhorrent practice in this classic episode.

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In 1996, a small group of German tourists disappeared in Death Valley National Park without a trace. Fifteen years later, the tenacity of one man solved the case.

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Did Native Americans really smoke peace pipes? Well yes and no. They smoked pipes for many reasons, sometimes to commemorate peace. But they never called them peace pipes.

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You can make a case that it’s a little off-putting to learn the world doesn’t really have any idea what to do with the nuclear waste we’ve been generating for several decades. The best we’ve come up with so far is bury it real deep and forget about it.

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