Bubble Universes

Bubble universes refer to a concept in cosmology suggesting that our universe might be just one of many "bubbles" in a larger multiverse. Each bubble could represent a separate universe, potentially with different physical laws or constants. This idea arises from theories like cosmic inflation, which propose that during the early moments of the Big Bang, regions of space expanded rapidly, creating distinct bubbles. These universes can vary widely, and while we inhabit one bubble, others may exist independently, possibly with different forms of matter and energy. The notion challenges our understanding of the universe and reality itself.