.

"There is a sense that the Pope in the person of Pope Francis became a figure who addressed everybody in the world… religious people and even those who do not have a religious affiliation," he says."I'm more and more aware that it's not just Catholics who are interested in this."

For many voting cardinals, it is primarily issues within the Catholic Church that are under the spotlight, which brings about the question of the type of pope they want as a manager, and someone who runs the Church's administrative body and its ministries.While Pope Francis worked on improving the way the Church deals with the huge issues of sexual abuse and of financial corruption, it is his successor who will have to ensure that reforms are evenly applied across the Catholic world.Even supporters of Pope Francis' efforts to make changes to the way the Church relates to its rank-and-file believers, and the way he built bridges with those outside the faith, were sometimes left confused about how exactly he envisioned things should work.

Pope Francis changed the tone on social issues through comments he made, talking openly about subjects ranging from climate change to financial transparency within the Vatican. But throughout his papacy, some were unclear about what he meant or how it would be applied.One mission he had was to take some of the power and decision-making away from the Vatican hierarchy and into the hands of rank-and-file Catholics.

Over nearly four years, at great effort, he commissioned what was, in effect, a poll of many of the world's Catholics to find out what mattered to them. Lay people were invited to participate in the most recent bishop's conference where the results of the survey were discussed.

The biggest issues raised related to greater roles for women in the running of the church and welcoming LGBT+ Catholics. But the meeting ended in some confusion, with little in the form of tangible steps forward and little clarity as to how lay people will help steer the future direction of the Church."Even in the restricted geographic area of London, a psychiatrist who is used to dealing with patients in Chelsea might really struggle to open a new office in Peckham dealing with those issues, because he or she just doesn't have enough training data with those users," he says.

Philosopher Dr Paula Boddington, who has written a textbook on AI Ethics, agrees that in-built biases are a problem."A big issue would be any biases or underlying assumptions built into the therapy model."

"Biases include general models of what constitutes mental health and good functioning in daily life, such as independence, autonomy, relationships with others," she says.Lack of cultural context is another issue – Dr Boddington cites an example of how she was living in Australia when Princess Diana died, and people did not understand why she was upset.