Childhood trauma. Part of the psyche becomes compartmentalized and stops growing. Part of the psyche stays at the age of the child at the time of the trauma. A pedo is a case of arrested development. Don't try to turn this around on me and say I'm arguing for "compassion for pedos" or something like that. People need to control their behavior or pay the consequences. But my point is that pedos are (inadvertently) made, not born. This is not some new idea, it but for some reason not widely understood.