lucy prebble, welcome to hardtalk. hello, stephen. thanks for having me. it is a great pleasure to have you here. now, you are very busy right now, because a play that you originally wrote in 2012 and put on in 2012 has been revived at the national theatre in london in just the last few days. and it's got me wondering, as you have been heavily involved with the revival, how have you sort of seen the evolution of your own writing and what interests you? have you changed in the decade? yes, i think i have. i mean, it's so interesting to go back to something you wrote just over ten years ago. as you say, 2012 was the first production of it. it's a play called the effect, and it follows... it follows two triallists taking part in a clinical trial for a new antidepressant and two