What Back to the Future teaches us about the cost of Salvation

Salvation is a term often used, and of eternal consequence, but rarely treated with the reverence that it should. Truth by it's very nature is exclusive, and one source of salvation exists- despite many perceived alternatives. The truth often hides in plain sight, and the movie Back to the Future holds a shiny nugget of truth in one of the final scenes of the film. Tonight we're discussing the cost of salvation, which is expressed openly in this one brilliant scene by Robert Zemekis.