Straggler writes:
In a lot of cases it's not so much pure invention as embellishment, misinterpretation and wishful thinking over-laden on top of relatively mundane observations and perceptions.
O' Realy?
In other words, human imagination.
"You were not there for the beginning. You will not be there for the end. Your knowledge of what is going on can only be superficial and relative" William S. Burroughs