Map of the Multiverse: from A₁,₁ to A₁,₅ and Beyond

The article "Map of the Multiverse: from A₁,₁ to A₁,₅ and Beyond" is a core part of the "Practical MBM" series. Building on the Infinite-Dimensional Multiverse Model (IDMM) and the theory of evolutionary attractors of fundamental constants, the author constructs a navigational map of the nearest neighbouring universes along the first extra dimension. A unified notation system is introduced (U₀ – our Universe, A_{k,m} – universe number m along axis w_k). For each of the five closest universes (from A₁,₁ to A₁,₅), deviations of the fine-structure constant (α), proton mass, cosmological constant (Λ), and gravitational constant (G) from our values are calculated. These changes logically lead to a shift in universe type: habitable (A₁,₁), sterile (A₁,₂), vacuum-unstable (A₁,₃), empty (A₁,₄), and singular (A₁,₅). Based on this, clear recommendations for future expeditions are given: A₁,₁ – priority for research; A₁,₂ and A₁,₄ – fly-by without stopping; A₁,₃ and A₁,₅ – strictly avoid due to critical and absolute danger levels. In the extrapolation section beyond A₁,₅, working hypotheses about possible types (artefactual, pre-atomic, sterile, singular) are presented, but it is emphasised that these require verification. The article honestly states its limitations: it does not provide precise coordinates, does not guarantee the extrapolation’s correctness, does not describe methods for measuring constants on site, and is not a final map. The scientific basis includes works on fine-tuning, vacuum instability, and gravity in higher dimensions. The material serves as a bridge between physical principles and practical navigation, setting the direction for subsequent articles on the classification of universes.