Ship of Theseus

Hey my dearies,

I just remembered this li'l puzzle from my Uni days and thought I'd share it with you guys. What're your thoughts?

The Ship of Theseus 

Theseus was the founder-king of Athens (a place in Greece). When he returned from a journey to Crete (another place in Greece), he and 30 other youths sailed in a ship made up of wooden planks. As they knew that strong winds and waves would be battling the ship, they decided to bring along enough planks to build a new ship, just in case a repair was needed. 

Along the way, wind conditions were much worse than expected. Theseus and his crew ended up having to replace each and every plank, one by one, at least once - with the conclusion that, at the end of the journey when they had returned to Athens, the ship was made up entirely of new and un-original planks. 

Is the ship at the end of the journey the same as the one at the start then? Is it still "THE Ship of Theseus" or is it another "Ship of Theseus"? What do YOU think?

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All right. Let's assume that you argue (with a good, logical justification) that the new ship is NOT the same as the original ship. It shouldn't be called THE Ship of Theseus. We'll examine the human body now.

Right now, as I'm typing this and you're reading this, millions of cells are being shed from my and your body. By the time one day has passed, hundreds of millions of these tiny cellular material would have vanished, gone forever from me or from you. In their places, new ones soon sprout. That's the miracle of the human body. 

Imagine the billions of trillions of such cells that would have been replaced by new ones, ever since someone were born. 

Now my question: Human bodies are made up of cells, in the same way that a ship is made of wooden planks.  So am I, or you, the same human being as the one that emerged from my or your mother's womb, many years ago?