#2688: Bubble Universes
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Transcript
[Cueball blowing expanding bubbles. In the largest one is a whole new universe with another Cueball blowing similar bubbles. The bubbles are progressively darker: the first ones are regular transparent/white bubbles, and as they grow, they turn gray then dark, to match the black night sky, with stars, galaxies, planets and other astronomical bodies]
(Sourced from explainxkcd.com)
Title text:The theory finally unifies cosmic inflation and regular inflation.