Every Catholic has his or her prediction for the conclave: some predict a new pope in the mould of Pope Francis, others predict a course correction for the Church with the election of a man such as Cardinal Robert Sarah. But if the topic of the conclave has been on everyone’s lips, one question of which I’ve heard little discussion so far has been its length: will the cardinals swiftly return a new pope, or will there be a long, hard fight, with many rounds of balloting before one candidate achieves a two-thirds majority of the electors?