Ok ok ok, so, if you have a ship and over many years you replace everyone of its planks with new ones. Is it still the same boat??

If you say yes: then if you build a ship with the discarded planks, which boat is the original?

If you say no: then since our own body replaces all of its cells over the span of some years through cell regeneration, does that mean we are not the same person we were 10 years ago?