Pessoal,
Apos postar essa reflexão, pesquisei bastante na internet e fiz contato com alguns físicos relativistas e um neurocientista. Este questionamento já vem sendo feito desde o surgimento da relatividade - Eddington, Weyl e outros já o fizeram - e continua sendo debatido até hoje.
Abaixo link para artigo do Neurocientista com quem falei (John Smythies - ele trabalha com o Ramachandran) e trecho de do livro de Vasslin Petkov que o mesmo enviou para mim e contem exatamente o que postei.
www.imprint.co.uk/pdf/smythies.pdf"6.3 Flow of Time and Consciousness
Don’t confuse language with reality. Human language is far better at capturing human experience than at expressing deep physical laws.
B. Greene [90]
6.3 Flow of Time and Consciousness 183
The concept of time flow has a completely di↵erent meaning in three-dimensional and four-dimensional worlds. In a three-dimensional world, we have the ordinary objective and universal flow of time – events are objectively divided into past, present (occurring simultaneously at the moment ‘now’), and future. In the Minkowski world, all events are equally existent and therefore are not objectively divided into past, present, and future.
After it was realized that presentism is in an unsurmountable contradiction with the relativistic experimental evidence the recently revived growing block universe model of the world, as we saw in the previous section, tries to find another objective mechanism of temporal becoming and therefore of time flow. The reason for the continued attempts to discover such an objective analog of our feeling that time flows appears to be the belief shared by many scientists and hilosophers
that our awareness of ourselves and the world only at the constantly changing moment ‘now’ should reflect an objective fact. There is nothing wrong with such a belief as long as it is not taken for granted.
After all, it reflects one of the two main interpretations of what we perceive – our feeling that time flows is caused either by an objective flow of time or by our specific way of perceiving the world (consecutively realizing three-dimensional reflections from physical bodies). However, in some cases [80, p. 61] that belief has been taken seriously since the fact that we realize ourselves and the world only at the present moment is regarded as part of the experimental evidence that should be taken into account when we try to arrive at a proper understanding of the world. I think such an approach indeed takes for granted one of the possible answers to the very question we have been trying to answer in the context of relativity – Does our feeling of time flow reflect an objective fact?
In view of all the arguments supporting the four-dimensionalist view let us see whether the feeling that time flows is compatible with that view. It is usually stated that there is no global ‘now’ in spacetime. In fact the situation is even worse for the proponents of the view that time flows objectively – the equal existence of the events of spacetime
means that there is no local ‘now’ either. On the objective time flow view, the present moment is privileged (the only moment of time that exists), whereas in spacetime, all events of the worldline of a particle are equally existent and therefore no event is privileged as the particle’s ‘now’. In such a four-dimensional world, the only meaningful concept
of time flow appears to be the one described by Weyl [1]:
184 6 Why Is the Issue of the Nature of Spacetime So Important? The objective world simply is, it does not happen. Only to the gaze of my consciousness, crawling upward along the life line of my body, does a certain section of this world come to life as a fleeting image in space which continuously changes in time.
It was Minkowski’s four-dimensional formulation of special relativity that marked the first time that the concept of consciousness was needed for the interpretation of a physical theory. The original threedimensional formulation of special relativity given by Einstein in 1905 did not need the concept of consciousness for its interpretation. This fact demonstrates that the question of the dimensionality of the world is related to the issue of consciousness. One may object that the ourdimensionalist view does not need the concept of consciousness, since we can obtain all results of special relativity without it. It is true that relativity itself as a physical theory does not need that concept. However, special relativity is telling us something very disturbing about the world and we must not only verify the relativistic four-dimensionalist
view, but also be prepared to reconcile the reliable pieces of knowledge deduced from our perceptual information with that view, if the world is really four-dimensional. Such a reliable piece of perceptual knowledge is something that no one questions – that we realize ourselves and the world at the constantly changing moment ‘now’. Up to now, no one has managed to find a way, which does not involve our consciousness, to reconcile the four-dimensionalist view and the fact
that whatever we perceive happens only at the present moment. This seems to indicate that Weyl’s proposal holds the greatest promise for a resolution of the apparently insurmountable contradiction between relativity and our experience.
Weyl’s view is especially important in demonstrating that those who regard the four-dimensionalist view as obviously wrong stand on shaky ground. Assume, for the sake of argument, that the world is really the way Weyl described it. Your consciousness would crawl upward along the worldtube of your body and read the information from your senses that is stored in your brain, but would incorrectly interpret this information in the sense that a three-dimensional world exists and is constantly changing in time. You would be completely convinced that you were living in a three-dimensional world which is evolving in time.
Then, if you read a paper by some scientists who argued that the external world were four-dimensional, you would most probably be quick to declare such a view total nonsense. There would be no way for you to discover that the real world is not three-dimensional if you were building your world view and your philosophical doctrines on the basis of information coming essentially from your senses, which lead you to believe that the whole world exists solely at the present moment because you are aware of yourselves and the world only at this moment. How do we know that we are not in the same situation? "
Abs
Felipe