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It's time for another Explainathon, the biannual tradition when we put Kai and Molly to the test: In 30 minutes, they'll try to answer as many of your questions as possible. It's going to be tough, because this might just be our widest-ranging 'thon yet: Gamers! Trade wars! Gas prices! Bots on the trading floor! Plus, Kai and Molly will try to stump each other.

Thanks to everyone who joined us for last week's Reddit AMA! If you missed it, you can read the whole thing here. Don't forget join our Facebook group for more Make Me Smart all week long.

This episode is brought to you by Schwab, Google G-Suite, PayPal and U.S. Bank.

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Follow Kai Ryssdal at @kairyssdal