Chasing Smoke, Not Fire: Why Don't We See Aliens? ✛

Original: "Decolonizing technosignatures: Reimagining technosignatures through an Indigenist lens"
· Hilding R. Neilson
arXiv:2607.07592 · 2026-07-08 · CC BY 4.0 · 1 min
We search for alien intelligence in pollution traces, but truly advanced civilizations might not leave any litter.

In 1960, a radio telescope spent months listening to space, and heard nothing. Since then, the Kepler mission, led by William Borucki, has discovered thousands of planets around other stars, but still no intelligent signals. Why? Perhaps we're looking for traces that are too loud. Technosignatures (signs of alien technology) are usually searched for as radio noise or industrial gases. That's like smoke from a chimney — visible from far away. But what if truly intelligent civilizations don't smoke?

In 1967, graduate student Jocelyn Bell Burnell detected mysterious radio pulses. The team initially named them LGM-1—"little green men." Later it turned out to be a pulsar, a natural object. So we nearly mistook a celestial phenomenon for a message.

Indigenous peoples, like the Mi'kmaq, have known for centuries: to live in harmony with nature means leaving no scars. Their technologies didn't disrupt natural cycles. Now scientists are proposing to apply this wisdom to the search for alien life. Instead of hunting for smoke, look for a campfire that warms without smoking. A truly advanced civilization might gently enhance nature, not break it.

So maybe the silence of the universe isn't emptiness but a sign of maturity? To notice such quiet technologies, we need to stop looking only for what's broken and dirty. And then, perhaps, our galaxy will turn out to be full of campfires whose light we once mistook for the ordinary background.

The first pulsar, discovered by Jocelyn Bell Burnell in 1967, was initially labeled LGM-1 (‘little green men’)—so strong was the expectation that any deviation from nature must be artificial.

Scientists
David Charbonneau
Concepts
technosignature search biosignatures biosignature detection seti carbon dioxide ai astrophysics radio interference artifact biomarker exoplanet characterization false alarm biology Natural Language Processing biofilm cosmic dawn magnetic signatures background galaxy merger signatures carbon footprint ecosystem ecological resilience