I didn't always like Brian Greene. I thought the documentary productions he participated in in the past (the ones that were a bit too American, too sensational, repeating the same thing over and over again, with way too much bullshit cgi) didn'tmake him look like someone to be taken so seriously. But having watched countless lectures,  interviews, coordinate conventions and talks, and listened to his own podcasts, I gradually realised he is a brilliant scientist, a humble human being, and, crucially, a wonderful orator - exceptional really. I can listen to him for hours (as I actually do).