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Even if the search for primordial black holes proves negative, as it seems it may, it will still give us important information about the very early stages of the universe. If the early universe had been chaotic or irregular, or if the pressure of matter had been low, one would have expected it to produce many more primordial black holes than the limit already set by our observations of the gamma-ray background.
— A Brief History of Time
 (book)
by Stephen Hawking
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| Language: | English |
| Submitted by: | spondulix |
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