New EPFL research has found that the exchange of comments between members and non-members of fringe communities (fringe interactions) on mainstream online platforms attracts new members to these extremist groups. It has also suggested potential ways to curtail this growth. New EPFL research has found that the exchange of comments between members and non-members of fringe communities (fringe interactions) on mainstream online platforms attracts new members to these extremist groups. It has also suggested potential ways to curtail this growth. Social Sciences Political science Phys.org – latest science and technology news stories