Ship of Theseus

The Ship of Theseus is a thought experiment: if you replace every plank of a ship, one by one, is it still the same ship? If you take the old planks and reassemble them into a ship, which one is the "real" Ship of Theseus? The puzzle forces a question about identity over time. What makes something the same thing when its parts or properties change? There is no settled answer — continuity of form, continuity of parts, continuity of narrative, and continuity of function all have defenders. The model matters for organisations, products, and brands: when have we changed so much that we're no longer "the same"?

In strategy, the Ship of Theseus appears whenever we ask whether a company, product, or policy is still "the same" after many changes. A startup that pivoted three times: same company or new? A brand that has changed its positioning, product line, and customer base: same brand? The answer affects how we think about legacy, commitment, and responsibility. If we're "the same" company, we own the past. If we're "new," we may disown it — but we may also lose the benefit of continuity (trust, brand equity).

The practical use: recognise that identity over time is a matter of choice and convention. Different stakeholders will draw the line differently. When you're changing an organisation or product, be explicit about what you're preserving and what you're replacing. The narrative of continuity or rupture is a strategic choice.