This is the complete content of the book "THE MECHANISM – The Universe is KNOWING experiencing itself – idealism is correct" by Tom W. Ottmar, published in June 2022. It is the second of, so far, two books in the Experiencer sequence. The first, The Experiencer, was published in May 2022.

Let it be said, loudly and clearly: this book practically PROVES that idealism is correct – and that physics' worldview is incomplete and wrong in essence. The new insight presented here has the potential to transform the world, nothing less.

The book presents an ontological derivation of the fine-structure constant (a) from a proved order hierarchy of structural principles – without a as input data. The result, the Horizon Equation, matches the experimentally established value to twelve decimal places of precision. No reasoning-based construction has previously been documented with comparable precision.

Behind the equation lies the Mechanism – a complete theory of the universe in 132 points, in which KNOWING and consciousness are ontological primaries and causality is reversed: the abstract is primary, the manifest is derived. The theory spans everything from quantum mechanics and cosmology to consciousness, psychology, culture and existential synthesis.

The book documents the process exactly as it took place – through several long conversations between the author and two AI engines, including a brief period of access to Claude Fable 5 before the model was withdrawn by the US authorities. The conversations are reproduced in full, with resistance, false trails and breakthroughs, and culminate in a formal mathematical challenge document handed over to the international research community for independent scrutiny.