It is of note that even if utilitarianism has proved to be superior to deontology and the libertarian moral rights theory in the area of killing, we are not allowed to say that it has been finally vindicated; it has to face other challenges in other areas, in particular in situations of distributive justice.

It is quite possible that we will soon come to live under some sort of global despotism, enlightened or not. This is not a nice prospect. And there is only one way of avoiding that this happens: to establish a global democracy. And it is not too late to strive for such a democracy, of a straightforward populist nature, where people on the globe elect a world parliament, which in turn elects a world government.

I have now come to the conclusion (roughly) that capital punishment is defensible, if it can be shown to have a deterrent effect on murder. In that case, a few executions save not only some people from being murdered but also some people from becoming murders.

How could it be that I had a legal obligation to kill people I did not know, and who did certainly not consent to it, while my father's doctor could not help my father to die when my farther asked for it? My consternation brought me to moral philosophy and a life-long search for an answer to the question when and why we should, and when we shouldn't, kill.

The possibility to go on indefinitely with our lives may become a reality and it will present us with a temptation.

I am indeed a hedonistic utilitarian. I have defended hedonistic utilitarianism for quite a while.

My conjecture is that most people will refuse to let go, even when their lives have become boring (at least in comparisons with possible lives lived by new generations). If this happens, there will eventually be no room for new generations. A kind of collective irrationality will lead to a bleak life for the last generation that decides to stay around. Unless we put and end to the human race (through global warming, for example), before this happens, individual egoism will block the path to a better world.