in that sense, because they're just doing the job that - they're...they're just - executing again and again through these multiplications. love that question, which brings us perfectly, really, to the end of this programme. we've heard about everything from the future of solar and electric vehicles and ai, and even touching on the first ai strike, i think, there. on behalf of the bbc world service, whether you're joining us via the internet around the world or here with us in this fabulous information age gallery, pleasejoin me in giving a warm round of applause to our brilliant pioneering engineers — jamie shotton, arjo van der ham, linda zhang. applause.