Facts about Cosmic Inflation Theory
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During inflation, a single causally connected region expanded so rapidly that it became larger than the observable universe, explaining why distant sky regions share the same temperature.
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Inflation theory predicts a nearly scale-invariant spectrum of primordial density perturbations, a signature that has been confirmed by measurements of the cosmic microwave background.
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The inflationary epoch is thought to have caused the universe to expand by a factor of at least 10^26 in an extraordinarily brief fraction of a second.
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Cosmic inflation theory predicts that quantum fluctuations during the inflationary epoch seeded the large-scale structure of galaxies we observe today.
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Alan Guth proposed cosmic inflation theory in 1980 to explain the universe's large-scale uniformity and flatness that the standard Big Bang model could not account for.