Feminist economic researchers include academics, activists, policy theorists, and practitioners. Different theorists and historians adopted each of these views. Many prominent theorists and critics have disagreed with Susskind's conclusions. Scientific space programs are of particular interest to conspiracy theorists. It is a sociological concept developed by several classical and contemporary theorists. Trivers is among the most influential evolutionary theorists alive today. But there is ideological diversity among public choice theorists. However, the report remains controversial among some conspiracy theorists. A number of sources have published articles debunking various claims put forward by conspiracy theorists. The idea of anacyclosis influenced theorists of republicanism. Also of interest to conspiracy theorists are cloud-seeding technologies. The guidestones have become a subject of interest for conspiracy theorists. This makes him one of the first theorists of libertarian socialism. Walters "found little to foster belief in the claims of conspiracy theorists". Pike has become a key figure for conspiracy theorists.