Missions to Alpha Centauri: AI, Private Funding, and the Quest to Solve the Fermi Paradox

Mapping a Course to Alpha Centauri

Artificial intelligence has plotted an interstellar journey to Alpha Centauri.

The system was developed by Physical Superintelligence (PSI).

Human Oversight and Creative Output

An astrophysicist on the PSI staff oversaw the operation. They directed the system to adhere to mission constraints, requested a cost breakdown and clearer charts, and checked outputs for calculation errors.

According to Pines, the most surprising aspect of the experiment was that the model devised an entirely different mission profile. It proved creative and was not initially considered by the Fermi team.

Despite this creative output, Pines noted that the model lacks the judgment and taste characteristic of human researchers.

It has no reliable sense of which problems are interesting or which approaches are worth pursuing, so it often gets stuck chasing dead ends or failing to explore different approaches, Pines said, adding that researchers have not yet figured out how models can internally represent research judgment.

The Race Against Future Technology

Project participants note that even if the proposed Fermi probe ultimately launches toward Alpha Centauri, it likely will not be the first to arrive.

Even if propulsion systems developed a thousand years from now operate just 20% faster than contemporary engines, a vessel launched in that future era would still surpass the Fermi probe’s arrival time by more than 10,000 years.

Confronting the Fermi Paradox

Beyond engineering ambitions, the project engages directly with the Fermi paradox, formulated in 1950 by physicist Enrico Fermi.

The paradox highlights that the galaxy contains hundreds of billions of stars, many significantly older than the sun, and that even slow interstellar travel could populate the galaxy within a few million years.

Because humanity has observed no signs of extraterrestrial intelligent life, the paradox implies that either interstellar travel is prohibitively difficult or advanced species have not attempted it.

Launching the Fermi probe would establish humanity as a civilization capable of attempting interstellar travel, altering those foundational assumptions.

The Threat of a Great Filter

According to Johnston, this realization leaves open more unsettling possibilities, such as intelligent life being exceedingly rare or self-limiting.

Maybe in the next 50 years, there’s some great filter that we do not pass through.