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Politics : Formerly About Advanced Micro Devices

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To: tejek who wrote (563715)	4/30/2010 9:55:29 PM
From: combjelly	Read Replies (2) of 1575981

"There has to be some reason for no contact." The galaxy is a big place. There are hundreds of billions of stars and it has been around for billions of years. We don't really know how long civilizations can last, but it is pretty likely that one can only reasonably communicate with another that is relatively close to it as far as development. Given how our technology has been increasing at an exponential rate, and assuming that is normal, the window could be pretty narrow. So even if there are millions of civilizations out there, there would only be a few that would be interested in any sort of communication. Which is not to say it won't happen. It just wouldn't surprise me if it doesn't happen for a very long time. And it is no surprise that it hasn't happened yet. "And that means what......they need a haircut or a shave?" Stephen Hawking's original theory about black holes held that once matter got sucked in, it couldn't get out again. So, the only things you could know about a black hole was its spin, its mass and its charge. All other information got erased. He summed that up with the phrase "black holes have no hair". However, since then it seems as if black holes can leak. To the point that a sufficient small black hole can explode. recent theories indicate that at least some of the information about the previous incarnation of the black hole and the matter it contains may even become available. He alluded to some work by Richard Feynman that suggest that entire objects can manage to leave a black hole with their information intact, just not in this universe. I have not been able to track down anything on that and it has me wondering if this is something really new... Regardless, it appears as if black holes can actually have hair.

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