The keel of Theseus

The Ship of Theseus Paradox: If the wood on a ship is gradually replaced until all the wood is no longer the original wood, will the ship still be the same ship? By analogy: animal cells are constantly renewed after metabolism, so are we always the same?

However, the keel of the vessel (human brain cells) cannot be replaced (metabolized). This means that keels and brain cells are conceptually similar to a "soul" - a metaphysical and ever-transporting form of matter. Hair loss metabolism represents the output; the employment voucher through consumption represents the input. This energetic cycle of hair and reception promotes life progress and change. More importantly, our "keel" holds the essence of our life and never changes.