Dropping an i Phone X Down 4000 FT Deep Hole Whats In There

So I dropped the new iPhone X down a 4000+ ft. deep mine hole and recorded it all to see what happens. So here s how my experiment went down. The fishing line I bought was 1329 yards (3987 ft. ) When the line ran out I was pretty disappointed thinking it s just dangling but the iPhone footage shows it seems to have hit something. I assume the line just kept unraveling despite the phone landing, unless it just landed on a ledge or something and actually was 4000 feet deep Hard to tell but after the initi