the video below begins with this simple but profound
question,

Take single modern human and place a parent behind him . . and then a parent behind that . . and so on . . generation after generation stretching into the past . . forming a line of spectacular proportions.

who or what would be standing way back at the
beginning of this stupendously long line?

for a provocative answer to this hotly debated
question, take a look at the video below