Using AI to reproduce the voice of David Attenborough, filmmaker Tommy Brennan created this nature documentary style video about the life of a house cat. I can never get enough David Attenborough, so even if was a computer generated him, I was hooked. TRUE STORY: I actually met David Attenborough and got him to record the answering machine message on my phone. Well, okay, I’d already started recording and asked him to say something, but if you listen closely I think you can hear him sigh.