On The Gist, Maria Konnikova of the New Yorker explains how our birth order influences personality and intelligence for a game we call “Is That Bulls—t?” Does IQ go down after the firstborn? Her new book, The Confidence Game, is now available for preorder. For the Spiel, Mike’s takeaways form the CNN Republican presidential debate last night.

Read more of Slate’s coverage of the GOP primary.

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