I was going to say that, except the new owner might not read Physics Forums...
Unfortunately, as others have commented, this makes the problem we see worse, not better. The standard answer in such situations, as has already been said, is that pop science books are not acceptable sources.
At this point the OP has been sufficiently addressed. Therefore, the thread is closed.
Please start a separate thread if you want to discuss this. But, as we have already seen, the book you are reading is not a good source, so I would not trust its explanations. You should look for an actual cosmology textbook. Liddle's An Introduction to Modern Cosmology would be one possibility.
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