Fan Theories

I wonder if it is possible to "explain" various science fiction franchises by placing them in the same fiction universe as other franchises?

Childhood's End provides the intriguing scenario by which the remaining Humans created Battlestar-style cylons. These cylon characters ended up in various franchises, as evidenced by the cylon ability to "project" a reality they prefer over what actually exists.

In this case the whole Battlestar Galactica saga could be Gaius Baltar "projecting" the entire story. Or any time a character in science fiction hallucinates i.e. when Doctor Stephen Franklin (Babylon 5) meets "himself", Riker and Picard's interactions with Q (Star Trek: TNG) and Batman's many encounters with the character "Batmite".