[unity1001]

Even further - not only the development of biological life forms on other planets would totally depend on the circumstances on that planet and create unimaginably variable life forms, but also these very different life forms would develop very different cultures and as a result, very different technologies. So even when we look for radio signals, we are looking for something that totally depends on our own technology, which is the product of our own civilization that is in turn the product of our own culture, which is a product of our own biology that was created by the circumstances on our planet.