Once we acknowledge the risk/uncertainty distinction, it is natural to think that our default state is uncertainty. Getting to a position where we can legitimately treat a proposition as risky is a cognitive achievement. Traditional indifference principles fail because they trivialise this achievement.

Brian Weatherson, Should we respond to evil with indifference?, Philosophy and phenomenological research, vol. 70, no. 3, 2005, pp. 613–635, p. 624