Introduction

What could be the role of M⁸-H duality?

1. The role of M⁸?

2. H\rightarrow M⁸ correspondence is very-many-to-one and 1-to-2 at vertices

3. About the identification of the surfaces Y³ and Y⁴

4. General observations about the dispersion relation defined by Y³

5. Surfaces Y⁴ with quaternionic tangent space (option T)

6. Octonionic Dirac equation in M⁸

How to construct the scattering amplitudes using M⁸-H duality?

1. The overall view of particle interactions at the level of H

2. The analogs of Feynman graphs in M⁸

3. Summary about the construction of the scattering amplitude in M⁸