Physics & Cosmology
Ekpyrotic / Cyclic Universe
Proposes the universe undergoes endless cycles of expansion and contraction, with each Big Bang triggered by the collision of higher-dimensional “branes.”
Proponents
Paul Steinhardt, Neil Turok
Evidence For
Avoids the need for a single unexplained beginning; offers an alternative explanation for cosmic flatness without inflation.
Evidence Against
Relies on string-theoretic brane physics that remains unconfirmed; struggles to explain some CMB observations as cleanly as inflation.
Real Sources
Transmissions
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