He wants to stop aging and possibly usher human immortality. The other builds microprocessors which mimic human biology, possibly engineering a future where if you do not like your retina, you can buy a new one from Konga, or if you hate your brain, Jumia will ship one, on pay on delivery.
But the Archbishop of Methodist Archdiocese Okigwe, hearing from his grandmother, sent an order: “Ndubuisi, we did not send you to America to play God, leave that”. It is great to live in America where the purity of your mind and the quality of your thinking can get you anywhere.
Aubrey De Grey is getting closer to curing aging!