‘There is no way to stop this’: ‘Biotech Barbie’ Cathy Tie on her mission to genetically modify babies

On a Friday evening in late April, Cathy Tie, the Canadian serial entrepreneur and self-styled “Biotech Barbie”, is centre stage at New York City’s famous Carnegie Hall, performing Saint-Saens’ Piano Concerto No 2 on a gleaming Steinway grand piano, accompanied by an orchestra. Her floor-length pink tulle gown shimmers with gold sequins; her dark hair cascades in waves over her caped shoulders. The music is passionate, but Tie’s expression is impassive. Her eyes dart between the piano keys and the sheet music in a flurry of concentration, but the rest of her face is totally still. She isn’t lost in the music; she’s focused on the job.

After the last notes ring out, Tie stands up and breaks into a tight smile and a brief bow before walking off stage, only to immediately return to receive the slightly awkward Happy Birthday sung by everyone in the orchestra and auditorium. This is Tie’s 30th birthday party. She has hired Carnegie Hall to mark the occasion. And, as I discover at the cocktail afterparty, most of the people invited to this performance...