Introduction

1. From O-H duality to M⁸-H duality to O-H duality: the history of the term "M⁸-H-duality"

2. What could be the hard core of the M⁸-H duality shared by O-H duality?

The two interpretations of M⁸-H duality

1. The interpretation of O-H duality as a generalization of momentum-position duality

2. The interpretation inspired by the twistor Grassmannian approach

Why should M⁸_c-H duality be replaced with O-H duality?

1. The problems of the realization of holography using octonionic polynomials P(o)

2. O-H duality as a simpler version of M⁸-H duality

3. O-H duality for the fermion fields

4. About the interpretation of Galois confinement and number-theoretic discretization

5. Criticizing  the zero-energy ontology

Problems related to Poincare invariance

1. Does the Hamilton-Jacobi and Kähler structures require a loss of Poincare invariance at the fundamental level?

2. The realization of Poincare invariance in the space of CDs

3. Conclusions