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tanja_alina_berg 's review for:
A Universe from Nothing: Why There Is Something Rather Than Nothing
by Lawrence M. Krauss
This book surprised me with its readability. I didn't feel like I was an average 5th grader taking a university course in physics ALL the time, although I do admit that somethings were above my head. If I ever want to learn anything outside of my current capability, obviously it's not going to come easy. This was very accessible though.
"Quantum fluctuations, which otherwise would have been completely invisible, get frozen by inflation and emergy afterward as density fluctuations that produce everything we can see! If we are all stardust, it is also true, if inflation happened, that we all, literally, emerged from quantum nothingness". (p.98)
The other startling conclusion is that we live in a day and age where it is still possible to measure evidence of the Big Bang and light can still travel from galaxy to galaxy. A few trillion years down the line, this will not be possible. It will only be possible to know about the mega-galaxy that the cluster the Milky Way belongs to will have merged with. The other galaxies and stars will have sped away from us, beyond an observable distance. Well, I never thought of that before!
I am quite bothered by light pollution, but not enough to regularly travel into the wilderness and look at the stars. I should take the time. Ponder the fact that we live in a special time, when the mysteries of the universe can still be considered, theorized about and proven by observation. I haven't seen the Milky Way since I was 10 years old, much less any smudge of a galaxy which isn't the one I live in. My knowledge of the sky is limited to the ability of telling stars from planets, but that doesn't deter me from enjoying it.
"Quantum fluctuations, which otherwise would have been completely invisible, get frozen by inflation and emergy afterward as density fluctuations that produce everything we can see! If we are all stardust, it is also true, if inflation happened, that we all, literally, emerged from quantum nothingness". (p.98)
The other startling conclusion is that we live in a day and age where it is still possible to measure evidence of the Big Bang and light can still travel from galaxy to galaxy. A few trillion years down the line, this will not be possible. It will only be possible to know about the mega-galaxy that the cluster the Milky Way belongs to will have merged with. The other galaxies and stars will have sped away from us, beyond an observable distance. Well, I never thought of that before!
I am quite bothered by light pollution, but not enough to regularly travel into the wilderness and look at the stars. I should take the time. Ponder the fact that we live in a special time, when the mysteries of the universe can still be considered, theorized about and proven by observation. I haven't seen the Milky Way since I was 10 years old, much less any smudge of a galaxy which isn't the one I live in. My knowledge of the sky is limited to the ability of telling stars from planets, but that doesn't deter me from enjoying it.