Speed-of-light limit

The Speed-of-light limit is presented as more than a barrier to crossing interstellar distances: it also governs what can be observed and known about the distant universe. In a discussion of hypothetical civilizations capable of opening wormholes, Bartek invokes the limit to question how such beings could locate one another. The answer makes the constraint more intricate: a wormhole might shorten a journey, but it cannot reveal a remote civilization before information about it has reached the observer.

Theoretical Background

The conversation traces the wormhole idea to theories developed before The Extermination. Their calculations have been recovered, but the surviving characters acknowledge that no one fully understands them. No theoretical physicists underwent IS before The Extermination, and the community has not been able to educate new ones from the ground up. Without teachers, developing that expertise would require one of the birthers to rise unaided to the level of Einstein or Hawking.

The proposed engineering is correspondingly immense. The initial requirement would be an accelerator with the diameter of the Solar System, merely to pursue the possibility of opening and stabilizing wormholes and maintaining their connections. The discussion leaves open the possibility that another civilization somewhere in the universe has already achieved this, but possibility alone does not solve the problem of finding it.

Travel and Information

Bartek objects that civilizations would need a way around the Speed-of-light limit for the scheme to work. The response shifts the question: even if a wormhole could reach a remote location in an instant, the information needed to choose that destination would still arrive at the ordinary speed of light. A civilization might tunnel to a world a billion light-years away without knowing that another civilization existed there; it would not learn of that civilization until its light had traveled the billion years to reach it.

This distinction separates mobility from knowledge. Wormholes, in the proposal, overcome the limit for travel but do not grant immediate access to news from across the cosmos. The speed-of-light limit therefore remains decisive even in a setting where faster-than-light passage is imagined: the universe can be traversed before it can be seen as it is.

Mapping the Observable Universe

The suggested response to this delay is to infer what distant systems may become. Observers would take the most precise measurements available and combine data about stars and planets with general astrophysical knowledge to map the probability that life and technological civilization might arise in each system. The image of a star a million light-years away shows it as it was a million years earlier, yet its recorded state could be used to estimate what might develop there a million years later.

That probability map would guide the opening of wormhole tunnels. Because a civilization could not pursue every destination at once, the plan also proposes sending AI probes to gather information about the current state of the cosmos: to learn what is happening now on worlds whose telescope images show only ancient conditions. The resulting database would chart possible trajectories of life and culture across different environments, extending beyond the observable post-inflationary universe if wormholes made those regions reachable.

Prediction and Intervention

The database is imagined as a practical guide to the possible development of worlds and civilizations. Its algorithm would compare a planet’s environment and biology with accumulated examples, estimate the likely outcome, and identify cases judged dangerous. The speaker describes a hypothetical world in which a tumor on the cosmos arises in 997 out of 1,000 cases, followed by the proposed response: to scorch it in its infancy.

The Speed-of-light limit thus shapes a speculative system of observation, prediction, and intervention. Delayed signals make direct knowledge of distant civilizations impossible in the present, so the proposed alternative is to infer their futures from old light and statistical patterns, then use wormholes and probes to act on those forecasts. The argument turns a familiar physical constraint into a limit on certainty: the further away a world is, the more any decision about it must rest on what can be predicted from its past.