However, I would also suggest that immortality also doesn't necessarily lead to unethical behaviour. If we are discussing life-extension more generally, which I believe is far more realistic at the moment, then it seems that it is a done deal. The medical research community, almost universally, is looking for ways to extend maximum human lifespan. It's going to happen, and we need to think about the implications of that.

I do agree with you, ethical behaviour and acting for the common good starts right now – regardless of how long we may live – but there are also some of us, myself included, who are excited by the prospect of living longer. I do not feel that this makes me an unethical individual, quite the opposite: I feel that it will give me longer to have more of an impact, to build more of an influence for good, then I may otherwise have ever had an opportunity to do so.

Life-extension to any real degree will have to coincide with many other important technological and social advancements to deal with the new issues that WILL arise from such a situation. We need to be discussing these things, I believe, simply because they will happen. Unless there is some unknown limitation which we are yet to find, medical science will improve our lifespans. What we have to think of now is how we can best ensure that this does not negatively effect our existence.