I was a fan of science fiction since before Captain Kirk of Star Trek's first split infinitive ( "To boldly go ..") – but I doubt may never be found with some of his smart friends abroad, or even any intelligent extraterrestrial microbe.
Some say that UFOs are a reality – but this seems to mean that the unidentified flying objects were seen – therefore, by definition, are "unidentified flying objects" – but buildings do not extraterrestrial – only unexplained observations. Unfortunately, data are not very convincing UFO alien connection – and whether foreign among us, keep a low profile.
You hear statements like: "Given the billions of stars in the universe is out reasonable doubt that life exists in space "… and …" There is no doubt that we live in a world where the population of all life "
Unfortunately, the above types of statements do not tell us anything – and if that evidence raises really strong connection with UFOs, aliens, close encounters and / or alien abductions, we really just weighing the possibility of extraterrestrial life based on data available to us.
It is certainly possible to make a plausible case of resonance of extraterrestrial life. To begin, we know that life exists on earth and we deduce that once existed. So at some point in the history of 4 billion years of Earth, life arose. If the origin via a mechanism natural, then we can deduce that the same mechanism may occur throughout the Earth as a planet elsewhere in the universe. So, extraterrestrial life may seem plausible, even likely.
The "Drake Equation" (Frank Drake, 1961) goes beyond – it estimates the actual potential planets in the universe of life. The calculation is based on several assumptions, the key is that life sure is likely to exist in any country-specific as planet – and the equation then implies that there could be millions of planets in the universe of life – many life forms to be smart – and not much more technologically advanced than us.
However, a problem with the key assumption Drake appears as a consequence direct the Darwinian theory of evolution. This theory argues that the organizational complexity of the land occurred gradually over a period of several million years, by the action of natural selection causing gradual changes over several successive generations of reproduction to organizations.
But consider this – how many generations any sequence of changes should be finished – you can not put a number infinity of successive generations to breed in the history of the Earth's finite, no matter how anyone can be brief. Therefore, if trace, each sequence evolution should lead to an initial member – a self-replicating molecular entity that emerged spontaneously (without help of natural selection, as there were generations before its existence) a 3000 + million years. In fact, every sequence evolution should the back to the first self-replicating molecular entity, the common ancestor of all subsequent forms of life – unless more than one self-replicator arose independently.
As for life on any planet, anywhere in the universe, a self-replication molecular entity which would arise spontaneously because, as Darwin's evolution to continue. There is no mechanism "in question, which can be expected that once operated on the ground, and is also likely to operate throughout the Earth as a planet elsewhere in the universe – From the emergence of a single replicator fist is an event entirely random.
My own estimates indicate that even assuming that all stars in the universe has a planet like the Earth in orbit, even if the first self-replicator was much more simpler than the simplest cells known, the probability of spontaneous origin in the entire Earth as a planet is mind bogglingly small.
Given our account of lack of knowledge on an auto-reply first possible that my assumptions about the purpose of my calculations are by necessity arbitrary – but I suggest realistic alternatives are not reasonably justify the Drake-like assumption that life is very likely to exist on a planet like Earth.
In fact, it is likely that millions of planets in the universe that has the essentials for life (water and even organic molecules) and yet are completely dead – because the self-replicating molecular entity, necessary for further evolution, does not arise spontaneously in any of them. The number of planets to support life in May and only one – this.
However, in the (!) Positive – All those millions of planets are occupied, uncontaminated Edens, ideal for "seed" and our future colonization, allowing us to spread throughout the universe without objection by foreigners. The future interplanetary wars under foreign films like "War of the Worlds" May-be among those who remain on the land and the descendants of those who have taken up residence in other planets, research and independence the world "home" – not a bad story for a sci-fi!
(C) Copyright 2009 Andy Chain (andychains.com)
Andy Chains – Born 19 Mar 1952, Rotherham, South Yorkshire, England. BSc Physics (1st class) 1976. PGCE. MSc Scientific Computing. Longest continuous job – FE Teacher – Physics/Maths for 12 years.
My homepage ( http://www.andychains.com ) has lots of quality ebooks to read for free.
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