At the closing banquet of the EARCOS teachers conference (I had been the opening keynote speaker) in Kota Kinabalu, one of the bands called me up on the stage to do an improvisational, rock version of my song “Exponential Growth.” Linda Sills, Assoc. Dir. of EARCOS, captured the call-and-response moment on her phone camera …

"Let me hear you sing, Exponential Growth!"