In almost all countries the public prefers psycho-social explanations of ‘schizophrenia’ to bio-genetic ones. The causal explanations of people who experience psychosis have been under-researched, and, if they diverge from the dominant bio-genetic paradigm, can be dismissed as ‘lack of insight’. 701 people, from 30 countries, who completed an online survey about their experiences on antipsychotics, answered an open question about what had caused the problems for which they had been prescribed the drugs. On a 'Bio-Social' likert scale, from 1 = ‘Purely Biological’ to 5 = ‘Purely Social’, the mean score was 4.24. Thematic analysis of 1,063 causal statements produced seven themes: Social (49.9%), Psychological (12.1%), Bio-genetic (11.6%), Iatrogenic (11.3%), Drug and Alcohol (6.7%), Medical Condition (4.5%) and Insomnia (4.0%). Respondents were 13 times more likely to report predominantly or exclusively Social causes as to report predominantly or exclusively Bio-genetic causes. Those with a psychosis diagnosis were even more likely than others to report a Social cause. The causal beliefs of this sample are consistent with previous studies of people diagnosed with ‘schizophrenia’ and the beliefs of the public. They are also aligned with recent research into the social causes of psychosis. It is argued that rather than dismiss the beliefs as ‘lack of insight’ it is more respectful and productive to listen carefully and adjust our understandings and services accordingly.