The survey used the Dynamic Argumentative Delphi (DAD) method, which was developed by the experts at Institutul de Prospectiva. The goal of DAD is to enable consensus building (in this case on the likelihood of certain developments in 2040) among a large number of participants, by making explicit the arguments supporting their evaluation.
This is work in progress, an intermediary result of the project and is meant to further stimulate reflection and discussion among stakeholders.