"There is nobody like Caryl Churchill and it's hard to think of any writer in history so completely on top of their game at her age. [What If If Only is] just 20 minutes, but it contains whole worlds."

- Time Out

"Quietly astonishing... a taut distillation and a gripping realisation of a giddying idea that resonates long after the curtain falls."

- The Stage

"A truly uncompromising theatrical voice at the top of her game... [Churchill] packs more into this 20-minute piece about death, grief and the multiverse than many writers manage at seven times the length... it has a crystalline beauty, sly humour and boundless imagination."

- Evening Standard

"Trust Caryl Churchill to pack more meaty matter into 20 minutes than most playwrights manage in two hours. Her surreal new short covers nothing less than bereavement, time and the universe – and does so with dizzying complexity... [She demonstrates] absolute mastery of her form. Like Picasso in his late sketches, she has become the essence of herself, still challenging, thoughtful and heading in directions no one else dares... a rocket of thought to propel you into the night."

- Whatsonstage