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The Magic Cafe Forum Index » » Not very magical, still... » » Premordial Gravity Wave (5 Likes) Printer Friendly Version

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MobilityBundle
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Quote:
On Apr 14, 2014, tommy wrote:
Nature is not a straight line. I would be more surprised if they discovered gravity was not wavy.


Yeah, but the headline isn't "gravity is wavy." We've suspected that for many years. The real headline is that there's finally observational evidence for cosmic inflation in the early universe. (Although, from what I understand, the evidence isn't incontrovertible and is still being mulled over by cosmologists.)

By analogy to water waves, the headline isn't that waves break on the beach. The headline is more like Christopher Columbus watching the waves on a beach in the Mediterranean, and from that information alone deducing the exact shape of America's coastline.

In fact, this is arguably more impressive in some sense. After all, Columbus could get up and go to America if he wanted, but we can't travel back to 10^(-30) seconds after the big bang.
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