From the very dawn of his presidential campaign, Donald Trump has been clear on one platform: The man wants a wall. But if the devil is in the details, well, then, there must be two of them, because as Seth Meyers points out on Wednesday’s A Closer Look, Trump seemingly has no idea how a border wall between Mexico and the U.S. would actually work. Will the wall be physical? See-through? Metaphorical? Magical? The Chris Hardwick–hosted NBC game show called The Wall? Wait, wait, yeah, pick the TV show, it’s definitely that one.