Schizophrenia has always been framed as a tragedy of the mind.What if that story is incomplete?For more than a century, schizophrenia has been treated as a purely medical failure-an error to be suppressed, managed, or erased. But this explanation leaves a critical question unanswered: why do the genetic traits associated with schizophrenia persist across cultures, continents, and centuries despite their cost?The Edge of Insight offers a rigorously researched and deeply human answer.Drawing on modern genetics, neuroscience, psychology, evolutionary biology, and creativity research, this book reveals that schizophrenia is not an isolated disease but the extreme end of a broader cognitive spectrum. The same genetic architecture that can produce psychosis under certain conditions also contributes-when expressed below the clinical threshold-to some of humanity's most valuable traits: creativity, imagination, emotional depth, moral seriousness, pattern recognition, and resistance to social conformity.Crucially, the strongest evidence for this connection does not come from those diagnosed with schizophrenia-but from their unaffected relatives, who consistently show elevated creative output and original thinking without functional collapse.This book dismantles dangerous myths on both sides: It rejects romanticized notions of "mad genius"It challenges the idea that schizophrenia-related traits are meaningless defectsIt exposes how rigid medical and social systems often turn difference into disabilityThe Edge of Insight reframes mental illness as a problem of regulation and environment, not identity. It explores why some minds walk close to the edge without falling off-and why modern society too often pushes them there.This is not a self-help book.It is not a defense of illness.It is a clear-eyed examination of how human cognition actually works-and what we lose when we try to flatten it.For readers interested in psychology, neuroscience, creativity, mental health, philosophy, or the future of human thought, The Edge of Insight offers a powerful new lens on minds that see differently-and why the world still needs them.