DO ALIENS VISIT EARTH?
If they do we must consider how they visit. Do they send holographic craft and/or various types of signals that allow them to traverse vast distances through telepresence? Do they send robotic craft? Do they come in person? The evidence seems to support the theory that, yes, they do visit. We don’t know if it’s one alien race that lives in a star system nearby or a variety of alien cultures in our galactic neighborhood, or some organizational body of various representatives. But, and this is important, they don’t seem to want to interact directly because they haven’t made a formal landing and a public communication.