Jack: It's a taller buttress, at least 20 feet higher, but with these second half arches that leap across to the exterior wall near where those cracks are forming. So, it will brace the top half of the church and keep these walls rigid when the wind blows.
Philip: But won't the higher buttresses appear rather naked?
Jack: Well, if we try and hide them with more walls, we lose the light. What's wrong with them appearing naked so long as they're strong and elegant, like the bird's wing?