My current Facebook status says:
"Russell Blackford is still working on that article about life extension - explaining why Peter Singer is wrong about this one. Contrary to Singer, we SHOULD develop a life-extension pill if we can."
So far, this has received fifteen comments; that's better than I normally get when I post something here! Admittedly, a small number of them are from me, responding to comments from others, but it's certainly a topic that has attracted interest.