Aubrey is trying to drum-up funding.
As he should, we have animals lasting for multiple centuries, and their tissues showing no signs of aging, yet here we are dying after a few decades riddled with disease.
We know that lifeforms can live even for several millenia, and even tens of millenia, it is likely tissue composed of cells can be made indefinitely lasting and self renewing. Nothing in physics seems to stop this possibility. We all have a gun pointed to our heads, every single human has a ticking time bomb in the design of their body, yet almost none care or do something about it, because COUGH HEAVEN COUGH. Irrational, simply irrational.-CSource link Kurzweilai thread on Aubrey speech