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Message: <blockquote data-quote="ColonelHardisson" data-source="post: 290736" data-attributes="member: 363">Re: Bwahahahaha!I think what you mean is that there are no aliens visiting Earth or making crop circles. There is no way to tell if there are any aliens at all in the universe. Given the sheer size of just our galaxy alone, and the increasing number of extrasolar planets that have been discovered, odds are getting good that there is at least some alien life out there, whether it's at the microscopic level or higher.SETI is a great program, but they only receive, for the most part (it's pretty impractical to transmit, given the distances and time inviolved, and the fact that every day uncounted radio transmissions are broadcast from Earth anyway). Given that it's only been around for 40 years, and even the Milky Way is tens of thousands of light years across, it could take a while before any signal, if a civilization exists to make one, is detected.  Consider - Earth has been putting out fairly powerful signals for only about 60-70 years now. That means that there is a bubble 60-70 light years in radius surrounding Earth where our radio and TV signals can be detected, which is really just a tiny drop in the galactic bucket. Nobody beyond that bubble has heard us yet. It could well be that a civilization is out there, but their "bubble" hasn't spread wide enough for us to detect it yet either.Nevertheless, while I believe alien life is possible, even intelligent life, I just don't think any are visiting Earth. Crop circles certainly  aren't made by aliens; even if aliens do visit Earth, why would they make crop circles? To be able to travel interstellarly, they would have to know about radio signals - a level of technology tht advanced simply could not be unaware of them; they would also likely be able to at least figure out that we use them for communication; therefore, why make designs in plant life for communication with us? Besides, how many hoaxers have to be found out before people get the idea that crop circles really are just a bunch of hoaxes? So they appear around the world - so does TV. And where did most of us hear of crop circles? TV. So some have evidences that crop circles have been around since before TV. Is it really hard to imagine that people could think of cutting or mashing down designs in crops back then? The fact that labyrinths (designs on the floor, not dungeons) were common in churches, and many nobles liked to have mazes made in their gardens, make it seem at least possible that people were familiar with such concepts. Besides that, humans seem to love to make big things, whether these are designs or statues or buildings or what-have-you. They like making things that are big and can be seen far away. So there was no way to see some of these designs from the air back then - well, maybe they just wanted them seen by God or whatever deity or power they wanted to catch the notice of. People have done much sillier things in such pursuits.</blockquote>

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