It is statistically likely that other life exists in the universe. At the same time it is reasonable that there should be just as many civilizations that are s

It is statistically likely that other life exists in the universe. At the same time it is reasonable that there should be just as many civilizations that are smarter than we are than those with less evolved capabilities. One could conclude that at least one of those billions of civilizations have developed super intelligent machines. Not one of those has visited our planet to wipe us out. Why? Perhaps we just aren't that important.