God, page-174

I do find it incredibly difficult to understand that a single incident in which a human being failing to follow a directive from God should lead to such far reaching repercussions.

The result appears to be that billions thereafter should suffer the consequences of this original single sin. The Christian message, as I understand it, is that the committal of this sin was necessary in order for God to find just cause in having his son sacrificed as reparations for this single sin.

Adam, if you will, is the fall guy, in all its meanings.

Somehow this single sin resulted in the rest of us committing sins through some sort of inherited pertinacity to do so from Adam. This is in spite of the fact that humanity was supposedly cleansed when the Biblical Flood killed off most of humankind and fauna. Somehow sin must have survived this "cleansing" process.

I understand that Jesus has paid the reparations, but sin (and/or Satan) still reigns because we still have the pertinacity to sin. I don't get how this reconciles with the "paid in full" cry from Jesus as he died on the cross.

Is this a reasonable summary of the "fall" of humankind?