The Ship of Theseus paradox

The Ship of Theseus is a though experiment that raises a question weather a ship that has had all it’s components replaced one by one still fundamentally remains the same object?

One could argue that since the parts are replaced one by one each individual part starts to become a part of the ship and by the time the last one is replaced all the other parts have become knows as essentially the original ship it still remains the same ship.

Some would quote the Sorites paradox ‘how many grains of sand make a heap?’ saying at some point with the replaced parts it becomes a new ship maybe when 51% of the parts are replaced. And since by the end none of the original parts exist and the ship could be categorized as different one.

But a further though was added to the original problem what if the removed parts were then used to make another ship by the ship builder?

That would give four possibilities:

1. The one with new parts is Theseus’s ship
2. The one re-made with old parts it Theseus’s ship
3. Both are Theseus’s ships
4. None of them are Theseus's ships

In my opinion, this paradox is more of a philosophy question. It focuses more on the replacement of the older parts, just like a human personality. If you find certain parts of you are old and rotten it’s about taking responsibility and replacing them with new outlook and thoughts to make you a better person.

If during the process of self improvement you end up changing your entire personality for the better , it is commonly said he/she is a new person now, even though they are the same physically and occupy the same space within our environment.