The mass of our observable Universe

ABSTRACT The standard cosmological model Lambda Cold Dark Matter (LCDM) assumes a global expanding space–time of infinite extent around us. But such idea is inconsistent with the observed cosmic acceleration unless we advocate for existence mysterious dark energy (DE) or constant (Λ). Here, argue instead that our Universe has very large but finite regular mass M, without need to invoke DE Λ. A system M gravitational radius rS = 2GM. When contained within rS, this black hole (BH). Nothing from inside can escape outside which becomes boundary dynamics. In limit where there nothing else outside, corresponds then local isolated universe. Such condition equivalent Λ term: $\Lambda =3/r_\mathrm{ S}^2$. We therefore interpret as measurement Universe, ≃ 6 × 1022 M⊙. BH observationally similar LCDM, except lack largest scale perturbations, are bounded by rS.