Radio has always fascinated me. When I recently cleared out my childhood bedroom, I re-discovered an old cassette tape featuring the product of an afternoon’s play with girlfriends: a home-recorded radio programme – which, lacking a cassette player, I have yet to listen to again. Radio works, in part, because it is such an intimate medium. The truly skilled presenters sound as though they are speaking to us directly. But during a lockdown, radio and podcasts have gained another significance: they add to our cavernous echo-chambers the experiences and voices of others.