If you click through, you can see there's no 'evidence' there. He simply offhandedly, in a sentence or two, makes the same speculation about fighting, with no s

If you click through, you can see there's no 'evidence' there. He simply offhandedly, in a sentence or two, makes the same speculation about fighting, with no sources, and the whole discussion of staircases in general is based on only 2 named examples. Chesterton's fence is satisfied: he knew no more than we did.