Listening the other day to BBC Radio 4, the UK's national talk radio station, I caught the end of one of those strange shows that attempt to prove that being intellectual can be cool. (As usual, it failed dramatically to do so.) Called The Philosopher's Arms, it is supposed to be set in a pub and features audience interaction that involves clinking cutlery on glasses. Really. I usually change channel as soon as I come across it.
This time, though, the subject was trolley ethics, which I find fascinating, so I gritted my teeth and kept listening. My hope was that a big problem with the best-known example of this philosophical discipline would be explored. Sadly, though, it was left undiscussed.