# Compare conditional possibilities without calling them escape routes

Theoretical research and cosmological uncertainty. Dyson’s 1979 Time without end investigated whether life and communication could continue indefinitely in a particular open-universe model, conditional on proposed scaling assumptions. That work shows how the question can be made quantitative. It does not establish eternal survival in every universe, or a demonstrated hibernation technique capable of preserving humans forever.

Canonical page: https://givegigs.com/wiki/necro-chapter-cosmic-models
Last updated: 2026-11-09T18:58:12.584Z
Parent topic: [necromancer-neuroscience](https://givegigs.com/wiki/necromancer-neuroscience)

## Contents
- [Overview](#wiki-section-overview-1)
- [Chapter notes](#wiki-section-chapter-notes-2)
- [Dossier section](#wiki-section-dossier-link-3)

<a id="wiki-section-overview-1"></a>
## Overview

Theoretical research and cosmological uncertainty. This page expands the “Compare conditional possibilities without calling them escape routes” chapter in the neuroscience collection.

<a id="wiki-section-chapter-notes-2"></a>
## Chapter notes

Dyson’s 1979 Time without end investigated whether life and communication could continue indefinitely in a particular open-universe model, conditional on proposed scaling assumptions. That work shows how the question can be made quantitative. It does not establish eternal survival in every universe, or a demonstrated hibernation technique capable of preserving humans forever.

Adams and Laughlin’s 1997 analysis explored the evolution of stars, remnants, and other astrophysical systems across times far beyond the present era. It helps distinguish the future of a particular planet, the lifetime of stellar resources, and the universe’s much longer-term evolution. A civilization’s plan cannot treat today’s astronomical environment as permanent.

Cosmic forecasts also depend on parameters still being studied. A 2026 DESI analysis of the Lyman-alpha forest reports updated constraints on expansion and evaluates both a cosmological constant and time-varying dark-energy models. Such measurements do not settle the universe’s ultimate fate or demonstrate that dark energy can be controlled. They support continued observation rather than certainty about a favorable ending.

Changing substrates, slowing activity, or using resources more efficiently might be relevant to some bounded survival scenarios, but each needs its own physical and engineering account. Wormholes, transitions to another universe, and engineered cosmological changes remain speculative suggestions here, not validated routes. None should enter the company’s roadmap as a milestone that current research can promise to deliver.

<a id="wiki-section-dossier-link-3"></a>
## Dossier section

[Open this exact section in the Necromancer dossier](/necromancer#cosmic-models). The original chapter status is “Theoretical research and cosmological uncertainty.”

## Sources

- [Time without end: Physics and biology in an open universe](https://journals.aps.org/rmp/abstract/10.1103/RevModPhys.51.447)
- [A dying universe: the long-term fate and evolution of astrophysical objects](https://arxiv.org/abs/astro-ph/9701131)
- [DESI DR2 Results IV: Alcock-Paczyński Measurements from the Lyman Alpha Forest and Cosmological Constraints](https://arxiv.org/abs/2607.27410)

---
This article is collaboratively maintained. Check the canonical page and cited sources for the latest context.