by Gaia | Jun 13, 2021 | To what extent is the Universe conceivable?
“Human ‘conception’ of the Universe works like the eyes conceiving of the body. We may be a component of the Universe – a critical one at that – and yet our function is to look outward (like the eyes). We are not designed to understand that which is happening behind the eyes, but to see and sense and bring form and color to the Universal body. We do not understand the inner workings of the Universe and thus cannot fully conceive of it. We can only conceive of our domain, but that should be enough. We must perform our function impeccably.”
by B. Janszen | Jun 13, 2021 | To what extent is the Universe conceivable?
“Understanding the Universe is like being in a boat in the middle of the ocean. In all directions, it appears as though the horizon forms a circle and thus creates a boundary. At the same time, it seems that the horizon continues infinitely in all directions. Yet, amidst all of this, we can fathom that there does exist a distant shore somewhere, and thus we feel at ease somehow. This is how I imagine the Universe as we can observe it. A multidimensional fractal that exists as a reflection of our minds and their limitations.
by Uppsala University | Jun 13, 2021 | To what extent is the Universe conceivable?
“Uppsala University researchers have devised a new model for the Universe — one that may solve the enigma of dark energy. Their new article, published in Physical Review Letters, proposes a new structural concept, including dark energy, for a universe that rides on an expanding bubble in an additional dimension.
We have known for the past 20 years that the Universe is expanding at an ever accelerating rate. The explanation is the “dark energy” that permeates it throughout, pushing it to expand. Understanding the nature of this dark energy is one of the paramount enigmas of fundamental physics.
It has long been hoped that string theory will provide the answer. According to string theory, all matter consists of tiny, vibrating “stringlike” entities. The theory also requires there to be more spatial dimensions than the three that are already part of everyday knowledge. For 15 years, there have been models in string theory that have been thought to give rise to dark energy. However, these have come in for increasingly harsh criticism, and several researchers are now asserting that none of the models proposed to date are workable.
In their article, the scientists propose a new model with dark energy and our Universe riding on an expanding bubble in an extra dimension. The whole Universe is accommodated on the edge of this expanding bubble. All existing matter in the Universe corresponds to the ends of strings that extend out into the extra dimension. The researchers also show that expanding bubbles of this kind can come into existence within the framework of string theory. It is conceivable that there are more bubbles than ours, corresponding to other universes.
The Uppsala scientists’ model provides a new, different picture of the creation and future fate of the Universe, while it may also pave the way for methods of testing string theory.”
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