The authors thank Jack Soll for extensive discussion and feedback in the early stages of this project; Michael Lee, David Budescu, and four anonymous reviewers for insightful comments on previous versions of the work, which helped us make significant improvements to the aggregation method and further understand the conditions under which it can boost accuracy; Marcellin Martinie, Tom Wilkening, and Piers Howe for sharing their data with us; and Manel Baucells, Drazen Prelec, Aurelien Baillon, Buyun Li, and Qinxin Geng for providing recommendations that further improved the paper.