Welton Chang Interview

In this episode (recorded 9/20/17), we interview superforecaster Welton Chang. Welton is a Ph.D. candidate in psychology at Penn in Philip Tetlock and Barb Mellers’ Good Judgment Laboratory. He served in Iraq and South Korea as an intelligence officer in the US Army and as analyst for the Department of Defense.

We start by talking with Welton about how he got involved the Good Judgment Project and the Good Judgment Laboratory. Then we talk about uncertainty in forecasting and Vizzini’s Princess Bride conundrum, the value of algorithmic forecasts (which we also talked about on another recent podcast), the limits of modern warfare, and whether Kim Jong-un and Donald Trump are rational actors.

We go on to talk about designing training materials for Good Judgment Project forecasters, IARPA’s CREATE program on improving analytic reasoning, avoiding groupthink, the importance of diversity in forecasting, and the art and practice of applying Bayes’ Theorem. We close with a shout out to Welton’s rescue cats, Percy and Portia.

You can read Welton Chang’s essay on the Iran deal, “Go Set a Watchdog on Iran” here. You can read Evan Osnos’ “The Risk of Nuclear War With North Korea” here. You can follow Welton (@WeltonChang) on Twitter here. You can follow Welton’s cats (@percyandportia) on Instagram here.

You can find NonProphets on BlubrryiTunesStitcher and Google Play. Links to our other superforecaster interviews are here. As always, if you have questions, ideas for future episodes, or would like to suggest a possible black swan event, you can use our contact page or e-mail us at (nonprophetspod [at] gmail.com). If you enjoy this podcast, please rate us and recommend us to your friends.

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