Big Think

Our universe keeps expanding. But why? | Lee Cronin

Jun 15, 2025
What if the universe is expanding due to selection? This bold notion suggests that life, novelty, and interactions might fuel cosmic growth. The discussion takes listeners through the implications of the universe's acceleration since the Big Bang. The fascinating idea posits a link between complexity, life, and the very fabric of space-time—proposing that as selection increases, so does expansion. Imagine the universe as a canvas that inflates with every choice and interaction—where complexity and time intertwine in a cosmic dance.
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INSIGHT

Universe Expansion Driven by Selection

  • The universe is expanding and accelerating not because of traditional forces but possibly due to selection processes.
  • Selection, in a broad sense where matter interactions and choices create novelty, might fuel cosmic expansion.
INSIGHT

Time, Selection, and Expansion Linked

  • Time is irreversible and fundamentally linked to selection through matter and life.
  • The amount of selection per volume, not just life, may be what maintains the universe's expansion and inflation.
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