[MERIT]

There are many competing theories that attempt to explain all of the so-called "Extraterrestrial" phenomenon that has occured throughout human history. Here are some of the theories:

Extraterrestrial Biological Entities (EBE's) - These occurrences are the result of the actions of biological entities that are not from our planet (i.e. "Aliens"). This brings up the following questions:
---How did these EBE's come to exist?
---So we are not alone in the universe?
---Are they somehow related to us?
---Is there a common "God" that created us all?
---Did these EBE's create humans, making THEM our "God"?

Us From The Future - The so-called "Aliens" are not extraterrestrial. The entities are humans from the future that have evolved and discovered how to travel through time, and have done so and intervened throughout human history. This brings up the following questions:
---If time travel is possible, does this mean that there are multiple timelines?
---What events in history have been affected by intervention?
---Is it possible to travel back to the time of the creation of the universe?

A Figment Of The Imagination - With virtually no physical proof and differing accounts of events, some believe that all encounters with supposed ET's were simply imagened during a nightmare, hallucination, etc. This brings up the following questions:
---How do you explain all of the sightings of supposed space crafts?
---How do you explain the continuity between unrelated accounts?


What do you guys think is the correct explanation? In my opinion, it is some combination of all of the above.