The future of this universe
Asymptotic de Sitter expansion
The resolved background approaches a positive constant-density fluid. With the specified stable future law, H tends to a constant and expansion continues. Heat death remains an additional conditional thermodynamic interpretation.
Hubble constant H₀
Baryons + dark matter + massive ν
Numerical + matched asymptote
Ultimate fate is not a measured probability
A future calculated from the equations
Expansion history
1011 yr
numericalLandmarks ahead
Assumptions shape the outcome.
A cosmological model constrains the evolution of its chosen ingredients. Unknown dark-energy behavior, particle stability and quantum gravity can change the answer.
Open the schematic 3D structure view
A changing cosmic scale
Seeded tracer groups illustrate increasing separation using the selected simulation state. The expansion mapping is compressed for visibility; coordinates and populations are not a structure-formation prediction.
An ensemble of possible universes
Sample H₀, Ωm, w₀ and wₐ. Independent marginal errors illustrate sensitivity; a measured joint posterior requires its correlations and provenance.
Covariance or posterior samples
Order: [H₀, Ωm, w₀, wₐ]. Ωde is explicitly derived by closure in every draw. No likelihood or evidence ratio is calculated.
Which parameters matter here?
Central finite differences of the nested-log expansion coordinate at min(endpoint, 10¹¹ years). Each bar is the response to the stated perturbation, not a universal ranking.
Explore the outcome map
Each cell solves the bounded future model w(a)=w₀+wₐ(1−1/a). Numerical/model boundaries remain visible as unresolved cells.