The article explores how groups of people make choices together and how complex it is to ensure those choices are fair for everyone involved. They found that making sure everyone is happy with the choices made can be really hard, especially when there are many options to consider. If the group only needs to pick the best options, it's a tough problem to solve. But if they can pick more than one good option, it's not as hard. Overall, the study shows that making choices that make everyone happy can be a tricky task, especially when there are multiple people involved.