The aliens are unlikely to arrive to colonize our planet, and not because aliens do not exist or they don’t know about the grounders. On the contrary, humanity will likely have long attracted the attention of the representatives of extraterrestrial civilizations, and if they wanted to take over our planet, they would have done it long ago. This opinion was expressed by Seth Shostak, one of the leading members of the Institute of search for extraterrestrial intelligence (SETI), commenting on the speech of the famous physicist Stephen Hawking.
Last week, physicist, a renowned expert on black holes, Stephen Hawking said that, from his point of view, humanity should not actively try to communicate with aliens. As stated by a scientist, astrophysicists should continue the search for extraterrestrial civilizations, however, if this will be successful, “hide” to not allow the alien invaders to find Land and turn it into their own colony, humans, in a sense, will be the Indians once in America the Europeans arrived.
Seth Shostak bases its position on the fact that a civilization capable of intergalactic travel, has a much more sophisticated technology than modern Earth, so their methods of gathering information about the outside world also must be much more advanced. Thus, if our planet would be of interest to the aliens as a source of resources coming from the Earth the signals would not change anything — aliens found our planet in search of these resources and, if it was necessary, long ago, came and took them. On the other hand, if the potential of the aliens from research considerations could be interested in the radio — to hide the humanity of late — thanks to television and radio they are already scattered at a distance of more than 80 light years from Earth in all directions, and for the truly technically advanced aliens should not be difficult to “catch” them. Again, if in this case the representatives of extraterrestrial civilizations still did not come to us, this means either that they are incapable, or that the Earth is simply not enough of them interested.
It is worth noting that to date, the vast majority of scientists agree that if aliens ever visit Earth, even if they exist, know about us and would like to contact, most likely a personal visit, they would prefer any other way to tell about yourself in a more rapid, inexpensive and easily implemented than a direct visit.