Inevitability to me is the Sun becoming a Red Giant. Aging is definitely not inevitable - hydras are a counterexample (and thus refute his claim).<p>He uses the same argument as Aubrey de Grey but reaches the opposite conclusion.<p>If aging is caused by the accumulation of mutations and &#x27;wear and tear&#x27; then we can control it. All we need are properly placed stem cells derived from your &#x27;unmutated&#x27; cells and taking care of the damage caused by our metabolism.<p>I mean: we have 37+ trillion cells in our body. To find a lot of them that haven&#x27;t suffered any mutation shouldn&#x27;t be hard. We could even take a billion cells and use the most common base for a given position - in the end it should lead to your original dna because each cell would have base mutations in random areas.<p>Or we could freeze a sample of DNA when we are young to ensure we have a non-mutated cell-line available for therapy.