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originally posted by: Ross 54
Another objection, is that it would make more sense for a extraterrestrial civilization to send a radio reply, or appear in person on Earth, rather than meddle with fields of grain. We are scarcely in a position to pronounce on how another intelligent form of life would think or behave.
For all we know, they may consider an overt message or visit to be inappropriate, given our obvious xenophobia. They may wish to approach us in subtlety , and very gradually. We, after all, have no experience in meeting an extraterrestrial intelligence, whereas they presumably do.
The notion that some crop circles may be a form of extraterrestrial communications raises a number of interesting questions. Among these is the one you raised. Is a crop circle a more or a less subtle form of communications for extraterrestrials to use, as compared to a radio signal?
It appears to me that the crop circle is the more subtle. The radio signal would probably be quickly understood to be an extraterrestrial communication. The 'Arecibo message reply' crop circle appeared 6 years ago. The very idea of it being an ET communication is still being debated. This sort of ambiguity in the popular conception of this event, with the idea of extraterrestrial contact being suggested but not certainly established, may be exactly what was intended.
The idea of one species carefully and very gradually presenting itself to another is well known to primatologists. They may linger for a long time in the territory of the apes they wish to study, before meeting them face to face. All the while, the fact of their presence is gradually borne in on the primates, and in the absence of trouble, may be slowly accepted, and eventually even taken for granted.