The Today programme this morning is coming from a college in Sheffield. They're doing various bits & bobs of audience vox pops, and they've just done one about impressions of the leaders, after the debate. One comment filled me with despair, a young student said that they preferred Johnson, because he gave straight, short answers, whereas Corbyn waffled.
The problem is that Corbyn recognises that these are complex issues, for which a short soundbite isn't sufficient. Johnson, however, knows that the soundbite is all that matters. People won't remember the content, they'll just hear his 'decisive' leadership in giving a short, snappy answer, and they'll chalk up a win for him.