Is Life Just Different?

20 hours ago

Carl Sagan's team detected life on Earth using Galileo spacecraft data, showing life's transformative power leaves detectable signatures from afar.
There's no consensus on what distinguishes life from inorganic matter, with some citing replication or metabolism, while others emphasize agency and goal-directed behavior.
Agency refers to the capacity of organisms to act for reasons, with debates on whether it applies to all life or only humans with conscious deliberation.
Critics argue agency is either redundant with existing biological concepts like plasticity or risks attributing mystical forces, lacking a concrete research program.
Proponents see agency as testable, helping explain gaps in gene-centric views by considering organism-environment interactions and broader inheritance mechanisms.
Agency may influence evolution through behavioral choices that create new selective pressures, as seen in phenomena like the Baldwin effect.
Developing a naturalized theory of agency could involve measuring dimensions of agency and linking it to internal architectures like feedback loops or predictive systems.
Understanding agency might clarify collective goals in multicellular organisms, breakdowns like cancer, and the creation of true artificial agents with their own goals.
Recognizing agency could help explain life's unique ability to shape planets, as observed from space.

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