All Things
We are well aware of the horizon effect: as we walk towards the horizon, the horizon gets further away. In science sometimes this effect seems to apply. Let us look at a few examples:
- Einstein?s Mistake
When Einstein formulated in 1915 his theory of general relativity, he soon applied it to the entire universe, deriving the following cosmological equation: It is curious that this equation is identical to the equation that would result from Newton?s...
- Why Science Can?t Explain Everything
The difficulty of explaining everything is not due to our mental weakness, but to the very structure of the universe. In recent centuries we have discovered that the fabric of the cosmos can be considered on several different levels. While the next level...
- Are We About To Become Immortal?
Arthur C. ClarkeIn 1965 Arthur C. Clarke published a short story, titled Dial F for Frankenstein, later published in the collection The wind from the sun: stories of the space age. In that story Clarke proposed the following scenario:When all global telephone...
- The Precariousness Of Scientific Theories
It is better to keep a certain skepticism about scientific theories,. Not only because these theories are always simple approximations tuned by further advances, as in the case of Newtonian gravitation and Einstein?s general relativity, quoted in a previous...
- The God Particle
Peter HiggsWith the discovery of Higgs boson, two years ago, the media and a few scientists have presented the discovery as the final completion of the standard theory of particle physics, in such a way that we now know everything and do not need God....
All Things
The horizon effect
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| Mycoplasma genitalium genetic map |
- Synthetic biology: In 1960, producing living cells in the laboratory was predicted to be feasible by 1970. In 2015, Craig Venter (1) sees it feasible soon, perhaps by 2030. It is true that we have come very far, that great strides have been made, but the ultimate goal seems to be always at the same distance, or even a little further away. Moreover, the origin of life remains a mystery. The simplest being able to live independently (Mycoplasma genitalium) is very complicated, light-years away from the hypothetical first living being.
- The fight against cancer: Here too, there have been important advances. Suffering from cancer is no longer equivalent to a death sentence. Many patients can be cured. But the final triumph over this disease, which the media and some scientists often advertise as imminent, moves away as time passes. Just look at the statistics and the newspaper obituaries to see that many people are still dying of cancer, sometimes at quite an early age.
Laser confinement fusion - Nuclear fusion energy: In 1960 Arthur Clarke predicted that this way of obtaining energy would be available by 1980. In 1980, significant progress made in Tokamak reactors and by means of laser confinement moved some scientists to predict that it would be available by the year 2000. Today no one bothers to predict a date: nuclear fusion is proving much more difficult to control than previously thought.
- Artificial intelligence: By this term I mean, not what is usually called by this name (programmed systems capable of making decisions), but artificial beings comparable to humans in intelligence and with a capacity for self-consciousness. In 1956, when the term was invented, it was predicted that artificial intelligence would be reached in just over ten years. In 1990, Ray Kurzweil (2) said again that it would be at our reach in ten years. In 1999, the same author (3) estimated that perhaps it would be feasible by 2010. Currently he is predicting it by 2030 or 2035.
- The theory of everything: In the late nineteenth century it became fashionable to say that physics had already discovered everything that could be discovered. There were just two small unexplained phenomena: the negative result of the Michelson-Morley experiment and the black body radiation. As soon as these two problems would be solved, physics would be closed forever. Between 1890 and 1905, the discovery of radioactivity, quantum theory and the theory of relativity revolutionized physics and opened totally new fields of research. By 1990, it was again said that we were about to know everything: with just a small boost (string theory seemed very promising), physics would have explained all. Today, with the possible discovery of dark matter and energy (we still don?t know what they may be) and the failure of string theory, the theory of everything seems to have receded. Moreover, there are reasons to think that it may be impossible to formulate such a theory.
In the above examples, the horizon effect is unmistakable. This does not mean that we will never be able to solve these problems, but we should be more careful whenever some small progress is made. If I had to take chances and make a prediction, I would say that, if these problems have a solution, I don?t think it very likely that it will be found during the twenty-first century. On the other hand, perhaps our scientific civilization won?t endure beyond this century. But that is another story.
(1) Craig Venter, Life at the speed of Light, 2015.
(2) Ray Kurzweil, The age of intelligent machines, 1990.
(3) Ray Kurzweil, The age of spiritual machines, 1999.
The same post in Spanish
Manuel Alfonseca
- Einstein?s Mistake
When Einstein formulated in 1915 his theory of general relativity, he soon applied it to the entire universe, deriving the following cosmological equation: It is curious that this equation is identical to the equation that would result from Newton?s...
- Why Science Can?t Explain Everything
The difficulty of explaining everything is not due to our mental weakness, but to the very structure of the universe. In recent centuries we have discovered that the fabric of the cosmos can be considered on several different levels. While the next level...
- Are We About To Become Immortal?
Arthur C. ClarkeIn 1965 Arthur C. Clarke published a short story, titled Dial F for Frankenstein, later published in the collection The wind from the sun: stories of the space age. In that story Clarke proposed the following scenario:When all global telephone...
- The Precariousness Of Scientific Theories
It is better to keep a certain skepticism about scientific theories,. Not only because these theories are always simple approximations tuned by further advances, as in the case of Newtonian gravitation and Einstein?s general relativity, quoted in a previous...
- The God Particle
Peter HiggsWith the discovery of Higgs boson, two years ago, the media and a few scientists have presented the discovery as the final completion of the standard theory of particle physics, in such a way that we now know everything and do not need God....