
Despite the recent claims by Steven Greer that SETI has not only made contact with ET, but they have been positively inundated with traffic from a particular region of Space, it's probably safe to assume we won't be exchanging caps and flags with aliens, intelligent or otherwise, at any time in the near future.
For their part SETI, i.e. Seth Shostak and Jill Tartar, who must surely be the 'highly placed sources' rumoured by Greer to have been keeping this information from us, have unsurprisingly denied all - even if they had been chatting with something or someone far away, it's highly unlikey they'd let someone like Dr. Greer upstage them - Shostak seems, as far as the news-media are concerned, to be the favoured human deemed 'expert' enough to be able to make the right introductory noises to the aliens as they disembark from their silver ships on the White House lawn. However, it's fair to assume that there exists somewhere a carefully prepared speech, and one that has been influenced by the Brookings Report, that decades ago, warned against the possible disintegration of morale and breakdown of law, order and society in general, if such news was not broken in the correct manner.
The linked essay, penned by Sam Vaknin, Ph.D, is a good appraisal of the current situation - that being, after 45 years of uninterrupted SETI funding, not one single genuine contact, (apart from the possible 'Wow' signal), has yet been detected, or at least officially reported through their good offices.
That we have so far failed to communicate with life on the inner or outer fringes of our sector of Space, can be ascribed to many factors, six of which are discussed here, and as they make for compelling reading, here they are.
First up, there is the possibility that no aliens exist, meaning we are the only conscious or intelligent life-form in the entire Universe. Current thinking counters this, especially when the age and size of our own galaxy are taken into consideration. In the 10 billion years since formation, there could have been ample time and opportunity for any number of intelligent civilisations to have flowered and died away billions of years before our own solar system came into being at 5.5 billion years ago.
As
this link illustrates, organic molecular compounds have been detected in cold and dead regions of space, where it was thought that no such structures could exist, at least according to the theory that suggests all such compounds must have been forged at very high temperatures. Although not proof of anything in this context, the indications are that life, and by association, sentient life, across inter-galactic space really could be ubiquitous, compared here to being as commonplace as the generative action of stellar formation.
The second suggestion as to why we have failed to make contact is that alien technology could be too advanced for us ever to detect, and this links with another point, in that instead of exploring space by the nuts-and-bolts method of physical beings travelling in material space-craft, aliens may conduct their explorations by employing techniques akin to remote viewing, which of course would leave little if any trace of evidence for us to find. It therefore follows, that despite having the capability and technology available to them, advanced aliens would have no need or desire to establish contact with us - although this raises the question of whether and how or why, different groups of aliens may choose to communicate with one another.
Next up is the possibility that we're simply looking for clues in the wrong spectra, and it has been mentioned many times in the past that slow, crackly radio signals are probably not the best way to go when attempting to communicate over the vast distances between hyper-distant locations. Given the almost infinite possibilities of technologies unimagined by us, other media should be researched and implemented, but as pointed out, budgetary constraints, as well as the squandering of hundreds of millions of dollars on the ruinously out-dated Shuttle fleet, mean that there is precious little money available to initiate such efforts.
Fourth on the list is the idea that alien life may be so alien that we would fail to recognise it at all, although there are good reasons to believe they could share some of our basic characteristics, such as walking upright, attaining (bin-)ocular vision, and the possibility that they could have hands with opposable thumbs, assets thought to be essential for inventing and handling technologies. The inference here is that intelligence would also feature as part of the bio-package
However, there is also a great deal of debate that imagines beings who, unlike us, are not organic, or carbon-based, with the suggestion that:
".... the universe may be populated with silicon, or nitrogen-phosphorus based races or with information-waves or contain numerous, non-interacting "shadow biospheres".Although unfamiliar with a 'non-interacting 'shadow biosphere' , such a phenomenon must presumably be similar to one of those mini-universes so hallowed by Japanese research scientists, (see post below). This is followed by the theory that even if we were unable to recognise extra-galactic beings as actually being what we would consider to be living beings, we should be in no doubt that we would detect their sentience and/or intelligence, as both we and they are apparently mutually capable of such cognition.
Point 5 discusses the notion that although we as humans are mightily keen on communicating not only with one another, but anything that moves, makes a noise or otherwise attracts our attention, other alien races may have no wish to communicate with outside worlds at all. This presents us with the possibility that we may have been detected already, but there is no intention on their part to reply or in any way reciprocate. Then there is the question of what constitutes spoken, written or other types of language, which even on our small dark planet, serves to divide entire nations and cultures from one another, as well as wreak havoc on a much more local scale.
The final reason given is that any aliens out there are deliberately ignoring us, maybe perceiving mankind to be bellicose in the extreme, bearing in mind that last century alone, something like 200 million people died as the result of warfare and related conflicts. Another suggestion is that they wouldn't care for the way we've apparently trashed the planet in the space of a few short centuries or millennia, with yet other ideas that we are a type of galactic zoo, nature reserve, or even laboratory, with ourselves and surrounding flora and fauna being subjected to unwitting analyses and experiments.
Additionally, in the event of there being more than one, and quite possibly many
instances of ET intelligence, there is no reason to suppose that they would be united in response and subsequent contact with us - each race would likely have its own agenda, with the further possibility that conflicts could arise from such differences or alliances.
But while we scour the heavens with various telescopes and other cosmological instruments, it is very unlikely that we have been detected by anyone out there. The only signals that would betray our presence here would derive from radio and TV broadcasts, which are beamed daily and 'omni-directionally'. However, radio beams have only been transmitted for the last 130 years, and TV only came into being during the 1930s, which in the general context of space time is so microscopically small and insignificant, that it's unlikely anyone out there will have the slightest clue of our existence over here.
This first part of an essay in progress leaves us with the comment that remaining incognito from the rest of the Universe might not be a bad thing, as there is no guarantee once perceived, we wouldn't find ourselves at a distinct disadvantage to our new arrivals from the stars. From our own history on Earth, we have seen time and again the effects of one advanced civilisation discovering other more 'primitive' peoples - war, disease, death and destruction almost inevitably follow in the blood-soaked footsteps, of the invading power, and therein is plenty of evidence to imply that humans might in this case turn out to be the down-trodden victims of someone else's project.
image moholy nagy c. 1920