Could the Universe be conscious?

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2018-02-18 08:30:12

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Could the Universe be conscious?

Over the past 40 years, scientists gradually opened a strange fact about our Universe: its laws of physics and the initial conditions of the Universe are perfectly tuned in order for life got a chance to develop. It turns out that in order to have a life, some values of fundamental physics – for example, the force of gravity or the mass of the electron must fall in a certain range. This range is extremely narrow. And so, it is highly unlikely that a universe like ours will get a range of values, comparable to the existence of life. But she could not.

Here are some examples of fine-tuning for life:

the
    the
  • Strong nuclear interaction (the force that ties together the elements in the nucleus of an atom) has a value of 0,007. If this value would be 0.006 or less, the Universe would be one hydrogen. If this value is 0.008 or higher, the hydrogen would be synthesized heavy elements. In both cases the chemical complexity would have been physically impossible. And without chemical complexity, there would be no life.
  • the
  • Physical ability of chemical complexity also depends on the masses of the basic components of matter: electrons and quarks. If the mass of the bottom quark would have been three times larger, the Universe would be one hydrogen. If the electron mass was 2.5 times larger, the Universe would be only neutrinos: no atoms and no chemical reactions.
  • the
  • gravity seems to be a powerful force, but it is much weaker than other forces acting on the atoms, about 1036 times. If gravity was even slightly stronger, stars would form from smaller amounts of material and would have been less, live less. Ordinary sun would have existed 10,000 years instead of 10 000 000 000, and time to help in the creation of complex life it would not exist. Conversely, if gravity was even slightly weaker, stars would be much colder and not explode the supernova. Life would be impossible, since supernovae are the main source of many heavy elements that formed the ingredients for life.

Some consider fine-tuning the basic fact about our Universe: may have been lucky, but the explanation is not required. But, like many scientists and philosophers, it seems to me incredible. In the "Life space" (1999), the physicist Lee Smolin has estimated the chance of existence of life in the Universe with all the fine tuning as 1 in 10229, from which it concludes:

"In my opinion, we can't leave without an explanation so insignificant probability. Fortune here is exactly nothing to do with it; we need a rational explanation of how something like this happens".

Fine-tuning there are two standard explanations: theism and the hypothesis of multiple universes. Theists claim that the Universe had a Creator, omnipotent and supernatural, and explain the fine-tuning of the good intentions of the Creator of the world. Life has no objective value; His or Her grace wanted to keep this a great value, so he created laws with constants that are compatible with the physical possibility of life. The multiple universe hypothesis postulates a vast, an infinite number of physical universes that differ from our own, which have implemented a number of different constant values. Given that a significant number of universes provide a large number of constants, it is not so impossible to create at least one universe with the "delicate"settings.

Both these theories can explain the fine-tuning. The problem is that at first glance they also make false predictions. For the theist a false prediction arises from the problem of evil. If we assume that the universe was created by a omnipotent, omniscient, and omnipotent being, no one expects this universe to contain a huge amount of undeserved suffering. In such a universe can be discovered life, and it's not a surprise, but a surprise will be to learn through a terrible process of natural selection that life is gone. Why would a merciful God who is capable of everything, to create such a life? Thus, theism predicts a universe that is better than ours, and for this reason the shortcomings of our universe are strong arguments against the existence of God.

With regard to the hypothesis of the multiverse (multiple universes), false prediction arises from the so-called problem of the brain of Boltzmann, named after the 19th century Austrian physicist Ludwig Boltzmann, who first formulated the paradox of the observable Universe. Assuming the multiverse exists, we can also assume that our universe is quite a typical member of the ensemble of universes or at least quite a typical member of the ensemble of universes with observers (since we can't observe ourselves in a universe with observers is not possible). However, physicist Roger Penrose in 2004 calculated that in the species of the multiverse, like modern physicists is based on inflationary cosmology and string theory – each observer that watches smooth and old universe, which is as big as ours, will be 1010123 observers, who see a smooth, old universe 10 times less. And yet, the most common type of observer will "Boltzmanngasse brain": a functioning brain, which by chance originated in a disordered universe for a short period of time. If Penrose is right, the chances that the observer in the theory of multiple universe will find themselves in a giant well-ordered universe, is astronomically small. And hence the fact that we ourselves are such observers, tells against the theory of the multiverse.

But none of this is irrefutable argument. Theists might try to give the reasons why God allows suffering to happen that we find in the Universe, and the multiverse theorists may try to adjust his theory so that our universe will have more chances of appearing. But all this wandering around it rather attempts to save the theory. Perhaps there is another way.

In the public mind as fully as possible physicists are trying to explain the nature of space, time and matter. Of course, we are close to that chosen; for example, our best theory of the very large – General relativity – are incompatible with our best theories of the very small – quantum mechanics. But it would be strange to assume that we will never overcome these obstacles and physics will not be able to proudly present a General unified theory of everything: the full story of the fundamental nature of the Universe.

In fact, physicists don't say anything about the nature of the physical Universe. Consider the theory of universal gravitation of Newton:

The Variables m1 and m2 denote the masses of the two objects between which we want to obtain the gravitational attraction; F is the gravitational attraction between two masses, G is the gravitational constant (a number which we know from observations); the r the distance between m1 and m2. Note that this equation does not give us a definition of what "mass", "force" and "distance". And this applies not only to Newton's law. The subject of physics is the basic properties of the world of physics: mass, charge, spin, distance, power. But the equations of physics do not explain these properties. They just call them to place them in equations.

If the physics doesn't tell us anything about the nature of physical properties, then what he says? The truth is that physics is a tool for prediction. Even if we don't know what "mass" and "force", we can recognize them in the world. They appear as readings on our instruments or have an impact on our senses. And using the equations of physics, like the Newtonian law of gravitation, we can predict what will happen with great accuracy. It is this predictive ability has allowed us unusually to manipulate the natural world, led to a technological revolution that has changed our planet. We live in a time that people are so stunned by the success of physics that tend to believe that physical and mathematical models have captured the whole of reality. But physics this is not necessary. Physics is a tool for predicting the behavior of matter, not disclosing its inner nature.

Given that physics tells us nothing about the nature of physical reality, then what he says? What do we know about what is happening "under the hood" of the engine of the Universe? The English astronomer Arthur Eddington was the first scientist who proved the General theory of relativity, and formulated the problem of the brain, discussed above (albeit in a different context). Thinking about the limitations of physics in "the Nature of the physical world" (1928), Eddington argued that the only thing we really know about the nature of matter is that part of it is conscious; we know because we are directly aware of the consciousness of their own brains.

"We know the external world because its fibers penetrate into our own minds; and our only the ends of these threads do we really known; from those ends we more or less success to restore the rest, as a paleontologist reconstructs an extinct monster in his tracks."

We do not Have direct access to the nature of matter outside of the brain. But the most reasonable assumption, according to Eddington, is that the nature of the matter outside of the brain is inseparable from matter inside the brain. Given that we have no direct understanding of the nature of the atoms is quite "stupid", according to Eddington, to say that the nature of atoms does not contain mentality and then wonder where this mentality comes from. In his book "Consciousness and fundamental reality" (2017) Philip Goff, Professor of philosophy, Institute of Central Europe in Budapest, developed these reflections in an extended argument panpsychism: the view that all matter has a conscious nature.

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