Will Self argues that, at a time when we're observing "our so-called leaders, fretting and strutting on the world stage", it really is a worthwhile exercise to spend time worrying about why we're here.

"I'd argue", he writes, "that to engage fully with the weird mystery of being is to at least take the helm of your own ship - even if its course is determined by some automatic pilot".

Producer: Adele Armstrong.