What If The “Multiverse” Is Real?

Don’t ya just love when the guys with all the degrees start
  we’ve been tossing around here for years now?

Call it a fluke, a mystery, a miracle. Or call it the biggest
problem in physics. Short of invoking a benevolent creator, many
physicists see only one possible explanation: Our universe may be but
one of perhaps infinitely many universes in an inconceivably vast multi­verse. Most of those universes are barren, but some, like ours, have conditions suitable for life.

The idea is controversial. Critics say it doesn’t even qualify as a
scientific theory because the existence of other universes cannot be
proved or disproved. Advocates argue that, like it or not, the
multiverse may well be the only viable non­religious explanation for
what is often called the “fine-tuning problem”—the baffling observation
that the laws of the universe seem custom-tailored to favor the
emergence of life.

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