My approach is to start from the straightforward principle that our body is a machine. A very complicated machine, but none the less a machine, and it can be subjected to maintenance and repair in the same way as a simple machine, like a car.

Wikipedia was a big help for science, especially science communication, and it shows no sign of diminishing in importance.

If changing our world is playing God, it is just one more way in which God made us in His image.

Some things tend not to work so well for science - things that rely on substantial written contributions by key experts are a case in point - but even there I tend to keep an open mind, because it may just be a case of finding the right formula.

Ageing is, simply and clearly, the accumulation of damage in the body. That's all that ageing is.

I think it's reasonable to suppose that one could oscillate between being biologically 20 and biologically 25 indefinitely.

What I'm after is not living to 1,000. I'm after letting people avoid death for as long as they want to.