The newfound flow cannot be explained by, and is not directly related to, the expansion of the universe, though the researchers believe the two types of movement are happening at the same time.
In an attempt to simplify the mind-bending concept, Kashlinsky says to picture yourself floating in the middle of a vast ocean. As far as the eye can see, the ocean is smooth and the same in every direction, just as most astronomers believe the universe is. You would think that beyond the horizon, therefore, nothing is different.
"But then you discover a faint but coherent flow in your ocean," Kashlinsky said. "You would deduce that the entire cosmos is not exactly like what you can see within your own horizon."
There must be an out-of-sight mountain river or ravine pushing or pulling the water. Or in the cosmological case, Kashlinsky speculates that "this motion is caused by structures well beyond the current cosmological horizon, which is more than 14 billion light-years away."
IMDB:
"Doctor in Brooklyn: Why are you depressed, Alvy?
Alvy's Mom: Tell Dr. Flicker.
[Young Alvy sits, his head down - his mother answers for him]
Alvy's Mom: It's something he read.
Doctor in Brooklyn: Something he read, huh?
Alvy at 9: [his head still down] The universe is expanding.
Doctor in Brooklyn: The universe is expanding?
Alvy at 9: Well, the universe is everything, and if it's expanding, someday it will break apart and that would be the end of everything!
Alvy's Mom: What is that your business?
[she turns back to the doctor]
Alvy's Mom: He stopped doing his homework!
Alvy at 9: What's the point?
Alvy's Mom: What has the universe got to do with it? You're here in Brooklyn! Brooklyn is not expanding!
Doctor in Brooklyn: It won't be expanding for billions of years yet, Alvy. And we've gotta try to enjoy ourselves while we're here!"
1 comment:
It's eery, how much I can identify with Alvy.
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