Glueball,
OK, but my post was in response to:
A programmed A/P ditching cannot be excluded.
A flight path with random waypoint crossings at 100 feet at slow speed could produce a low energy wings-level splashdown upon fuel exhaustion, long after the suicidal pilot had switched off the packs and leisurely asphyxiated himself and everyone else.
A 'programmed A/P ditching' is not a function available, and I was pointing out that a 'low energy wings level splashdown' cannot be achieved by pilotless 777 other than with unimaginable luck.