How does this allow for progress in anything? I took over management of a hundred year old historic hotel, when I asked the staff why they did something odd they always responded with “That’s how we’ve always done it”, and I would answer, “then you’ve always done it wrong”…if we only stick to what we’ve always known, we never make progress. Most if not all inventors and discoverers would agree, science and technology would grind to a halt if we only consider what people see as valid truth in the past. Our world is nowhere near perfect, we have to consider other views.