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the universe can and will create itself from nothing. Is a circular reasoning as you say, even worst: create itself (like god!); from nothing? (a free lunch!). From 'nothing' we can not get 'something'. I think that Spinosa's view is more adequate to a physicist: The Universe was, is and will be ALL with no start nor end.
I once thought that if I could ask God one question, I would ask how the universe began, because once I knew that, all the rest is simply equations. But as I got older I became less concerned with how the universe began. Rather, I would want to know why he started the universe. For once I knew that answer, then I would know the purpose of my ...
- Neil de Grasse Tyson
- 2017
- “The universe is under no obligation to make sense to you. — NDT” ― Neil deGrasse Tyson, Astrophysics for People in a Hurry.
- “We are stardust brought to life, then empowered by the universe to figure itself out—and we have only just begun.” ― Neil deGrasse Tyson, Astrophysics for People in a Hurry.
- “The power and beauty of physical laws is that they apply everywhere, whether or not you choose to believe in them. In other words, after the laws of physics, everything else is opinion.”
- “We do not simply live in this universe. The universe lives within us.” ― Neil deGrasse Tyson, Astrophysics for People in a Hurry.
- The Emergence of Matter in The Universe
- Quantum Fluctuations and The Fabric of Spacetime
- Theoretical Physics and The Cosmos
- Cycles from Almost Nothing
- Penrose’s Theory of Conformal Cyclic Cosmology
- Philosophical Implications and Future Discoveries
- Penrose’s Cyclical Universe: A Myth Reborn
But before we get to that, let’s take a look at how “material” – physical matter – first came about. If we are aiming to explain the origins of stable matter made of atoms or molecules, there was certainly none of that around at the Big Bang– nor for hundreds of thousands of years afterwards. We do in fact have a pretty detailed understanding of ho...
But how did these particles come to exist in the first place? Quantum field theory tells us that even a vacuum, supposedly corresponding to empty spacetime, is full of physical activity in the form of energy fluctuations. These fluctuations can give rise to particles popping out, only to be disappear shortly after. This may sound like a mathematica...
We still don’t have a perfect theory of quantum gravity, but there are attempts – like string theory and loop quantum gravity. In these attempts, ordinary space and time are typically seen as emergent, like the waves on the surface of a deep ocean. What we experience as space and time are the product of quantum processes operating at a deeper, micr...
To truly answer the question of how something could arise from nothing, we would need to explain the quantum state of the entire universe at the beginning of the Planck epoch. All attempts to do this remain highly speculative. Some of them appeal to supernatural forces like a designer. But other candidate explanations remain within the realm of phy...
Conformal cyclic cosmology offers some detailed, albeit speculative, answers to the question of where our Big Bang came from. But even if Penrose’s vision is vindicated by the future progress of cosmology, we might think that we still wouldn’t have answered a deeper philosophical question – a question about where physical reality itself came from. ...
Penrose and his collaborators believe they may have spotted these traces already, attributing patterns in the Planck data to radiation from supermassive black holes in the previous universe. However, their claimed observations have been challenged by other physicistsand the jury remains out. Endless new cycles are key to Penrose’s own vision. But t...
For a philosopher of science, Penrose’s vision is fascinating. It opens up new possibilities for explaining the Big Bang, taking our explanations beyond ordinary cause and effect. It is therefore a great test case for exploring the different ways physics can explain our world. It deserves more attention from philosophers. For a lover of myth, Penro...
Feb 15, 2024 · How Can Reading Quotes About The Universe Be Helpful? Reading quotes about the universe can be beneficial in a number of ways. Here are some of the key benefits: Expands our perspective: Quotes about the universe can help us expand our perspective and see the world in a new light. They can encourage us to think beyond our own experiences and ...
At the moment of the Big Bang, an entire universe came into existence, and with it space. It all inflated, just like a balloon being blown up. So where d...
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5. A key lesson from A Universe From Nothing is the idea that the universe may be in a state of eternal existence, constantly undergoing cycles of expansion and contraction. Krauss discusses how this cyclic model can address the issue of a finite universe and provides a plausible explanation for the origin of our current cosmos.
