The Cosmic Holographic Expansion Principle: A Parameter-Free Derivation of Λ from Neutrino Mass

The cosmological constant problem—why dark energy is 10123 times smaller thanthe Planck prediction—rests on a category error: treating virtual pairs as bulk energywhen they are boundary information. From the Bousso entropy bound, Bekenstein–Hawking formula, and sphere geometry alone, we derive two closed-form equations:The Holo Density Equation (HDE), which gives the maximum density encodable by aspherical boundary, and The Holo Dark Energy Equation (HDEE), which replaces themeasured cosmological constant with a quantity determined entirely by a single massscale. A Standard Model census identifies the lightest neutrino ν1 as the uniquespecies consistent with observed dark energy, yielding m1 ≤ 1.759 meV with zerofree parameters. If the Standard Model is complete, m1 = 1.759 meV exactly; ifm1 is measured below this value, at least one beyond-Standard-Model particle mustexist. Falsifiable by inverted hierarchy confirmation or wDE̸ = −1 at >4σ; bothtestable before 2030.