Ok, but we haven't addressed a few things. In what coordinates is the point specified? Is it in latitude/longitude, so if the earth crust moves, the position changes relative to the course, or does it move with the course?
And, for that matter, what if, as you drop it, there's a massive earthquake and the point where you were supposed to drop it is now a chasm? There may no longer even be a point for the drop. WHAT THEN?