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Until 18-plus, T's and C supply, exchange fees and fair usage limits supply. Hello and welcome to the Jordanorama edition of Slate Money, your guide to the business and finance news of the week.

I am Kathy O'Neill of Math Bab.org. I'm filling in for Felix Salmon

of Fusion who is off in Utah or something like that. I'm joined as always by

Slates moneybox columnist Jordan Wisman. Hello, Kathy.

Hello, Jordan.

And also this week it's very special.

Another Jordan!

Special guest Jordan Ellenberg, a math professor at the University of Wisconsin,

and the author of How Not to be

Wrong, the Power of Mathematical Thinking. Thanks for joining us, Jordan.

Thanks for having me, Kathy. Today we're going to be talking about the risk

involved in becoming an academic in a world where tenure is rare and difficult

thing to find. We're going to be talking about tenure in general and tenure

specifically in Wisconsin where Jordan Ellenberg is a professor. We'll also be talking about the lotteries,

how to design lotteries, how to beat lotteries,

and at least in one special case,

how the lotteries were beaten.

...