The Ship can only be called the same ship because it was used continuously during one journey. If the sailors had disembarked, broke the ship down on land, and

The Ship can only be called the same ship because it was used continuously during one journey. If the sailors had disembarked, broke the ship down on land, and reused some of the parts to rebuild it, nobody would be calling it the same ship. Only because it happened slowly do they call it the same ship. If they took part of the ship and used it to build a new ship, and rebuilt the parts they took with new wood, they wouldn't call the new ship the same ship as the old ship. So it's perfectly fine to identify as the continuous stream of awareness, and are perfectly justified to state that a break in that continuity would constitute creation of a new person rather than a continuation of the current one.