If you get this one right, you can win the yelw belt, a peace prize. I'd have him try to get the israelian, palatinian representatives to pass each other's ideological touring test. So then you can actually disagree with or engage with the the real thing that they think and not your straw man of what they think.
When it comes to what we believe, humans see what they want to see. We have what Julia Galef calls a “soldier” mindset: a drive to defend the ideas we most want to believe — and shoot down those we don’t. But if we want to get things right more often, argues Galef, we should train ourselves to have a “scout” mindset. Unlike the soldier, a scout’s goal isn’t to defend one side over the other. It’s to go out, survey the territory, and come back with as accurate a map as possible. Regardless of what they hope to be the case, above all, the scout wants to know what’s actually true. In The Scout Mindset, Galef explores why our brains deceive us and what we can do to change the way we think.