Emptiness doesn't have to mean nothingness: it could mean happiness

What remains of us when we no longer think or feel anything? Are we then - nothing?

I was green around the gills. Only minutes earlier, I had been chattering away happily with a more-or-less healthy hue to my complexion as I boarded the plane - with a plan to demonstrate how our wireless technology for measuring heart and sweat-gland activity works under unusual conditions.

But now, here I was, just about to jump out of the plane, with only a parachute to save me, and I had taken on the colour of a vampire who's been snacking on the wrong blood group. Later, this will even be recognisable on photos of the event.