In 1748, Montesquieu gave the world its most celebrated political idea: divide power into three branches, and tyranny becomes impossible. Legislatures write the laws, executives enforce them, courts keep everyone honest. It sounded magnificent. It was adopted everywhere. And it has failed everywhere — not occasionally, not in fragile states alone, but systematically, predictably, and for reasons that Montesquieu, brilliant as he was, could never have known.

This book explains why. Drawing on recent discoveries in neuroscience, psychology, and control theory, Boris Kriger reveals that the separation of powers is architecturally correct but built from the wrong material. Power physically changes the human brain. It suppresses the neural circuits responsible for empathy. It induces a progressive personality disorder documented in presidents and prime ministers. It attracts precisely those individuals least suited to wield it. And once a leader is sufficiently damaged, the first thing they destroy is the mechanism designed to detect the damage.

No institutional safeguard — not term limits, not judicial review, not a free press, not the most beautiful constitution ever written — can permanently resist this degradation, because every safeguard depends on human enforcers who are subject to the same neurobiological corruption.

Montesquieu diagnosed the disease with perfect accuracy: every human being with power will abuse it. He simply did not take the next step. If every human with power will abuse it, then perhaps humans should not be in the loop at all — at least not at the points where the damage is greatest and the consequences most catastrophic.

Keywords: Montesquieu, separation of powers, neuroscience of power, democratic backsliding, governance automation, institutional failure, political psychology