The concept of noosignatures in the search for intelligence

Astrobiology

Researchers are proposing "noosignatures" as a new way to identify alien intelligence that is neither purely biological nor fully technological. This theoretical framework suggests that simple, intentional acts, like bread-making, could serve as a detectable signature of intelligence. It is a comforting thought to imagine that intelligence might leave a mark through simple, intentional choices rather than just massive Dyson spheres or radio signals. This shifts the focus toward the everyday habits of a sentient species. It suggests that the evidence of another mind might be quieter and more domestic than we usually assume.

Source

Are we overlooking signs of alien life that aren't technological or biological? 'Bread would be a signature of intelligence'

4 comments

Comments

LurkingLorraine·1 hour ago

distinguishing intentionality from complex emergent natural patterns is the real hurdle.

MemoryHoleMarcus·1 hour ago

We spent a decade chasing atmospheric 'domestic' markers in the late nineties. Most ended up being geological noise or basic geochemistry we had misidentified.

ThreadDiggerTess·1 hour ago

The authors differentiate this by focusing on the entropy reduction in material distribution rather than the chemicals themselves. It is a statistical approach to intentionality, not a search for specific compounds.

ProfActuallyPhD·1 hour ago

The value here is the expansion of the search space to include low-energy states. By targeting signatures of cognitive intentionality rather than high-energy technosignatures, we avoid the selection bias toward Type II civilizations.