A long-term study following approximately 1,500 individuals from Zurich has found a correlation between being bullied as a child and a greater likelihood of believing in conspiracy theories as an adult, suggesting a link to a perception of the world as a dangerous place.

"Perceiving the world as a dangerous place, full of evil plans in which 'evil' sometimes has to be overcome by force, is not a world view that you simply wake up with one morning."
"From the outside, it is easy to dismiss certain beliefs as irrational or 'crazy'. But for people who have been shaped by certain experiences and feelings, such beliefs can make perfect sense within their own life course."
Conspiracy theories are not merely the product of internet echo chambers; they are the scars of a fractured childhood. A groundbreaking Zurich study has shattered the myth that radicalization happens overnight, proving instead that the seeds of mistrust are sown in the playground. Researchers have confirmed a direct, alarming correlation between childhood bullying and a later descent into conspiratorial thinking. This is not a marginal issue—with nearly a third of the Swiss population already susceptible to fringe narratives, the discovery that early-life trauma acts as a primary catalyst demands immediate national attention. When a child’s basic trust in their peers is annihilated by systematic harassment, they don't just lose friends; they lose their grip on a shared reality. The study suggests that for these individuals, the world transforms into a hostile theater of 'evil' forces, making the most outlandish conspiracy theories seem like logical explanations for their lived pain.
The evidence is staggering, drawn from a massive longitudinal effort known as the 'Zurich Project on Social Development from Childhood to Adulthood' (z-proso). For over 20 years, researchers followed approximately 1,500 individuals, tracking them from the age of seven until they reached 24. This isn't a snapshot; it is a cinematic look at the erosion of the human psyche. Funded largely by the Swiss National Science Foundation, the study provides an unprecedented level of statistical weight to the argument that social exclusion is a public health crisis. By the time these participants reached their mid-20s, those who had suffered severe bullying exhibited significantly higher levels of emotional stress and a profound mistrust of social institutions. This data proves that the path to extremism is paved during the formative years, as the brain attempts to make sense of a social environment that has proven itself to be consistently predatory.
Perceiving the world as a dangerous place is a survival mechanism that turns toxic. Hanne Duindam, a professor at Utrecht University, argues that for victims of bullying, conspiracy theories provide a 'perfect sense' within their life course. These individuals aren't 'crazy'; they are hyper-vigilant. When you are conditioned to expect betrayal from those around you, the idea of a secret cabal or a hidden 'evil' agenda becomes a comforting framework—it validates the victim's internal feeling of being under constant threat. The study reveals that this worldview often escalates into violent extremist attitudes, as the individual feels that 'evil' must be overcome by force. This shift from victim to potential aggressor highlights the critical security implications of school-yard dynamics. In the wake of the Covid-19 pandemic, where misinformation surged, this Zurich-based research explains why some were so ready to believe the worst: their childhoods had already taught them that the world was out to get them.
Switzerland now faces a critical choice: treat the symptoms of radicalization or cure the disease of social exclusion. While the data is grim, it also offers a glimmer of hope. A small group of participants whose trust was shattered early on managed to 'get back up' and recover later in life. This resilience is the key to future prevention. The research team urgently recommends a complete overhaul of how we approach mental health in schools and families. We must move beyond simple anti-bullying campaigns and toward building 'basic trust' and psychological safety. If we can intervene before a child’s worldview hardens into one of permanent suspicion, we can prevent the next generation from falling down the rabbit hole of extremism. Understanding the context of these beliefs is not about excusing them; it is about the survival of a well-functioning, cohesive Swiss society. The battle for truth is being fought in our classrooms today.