I know, I might specify who Mark actually is, but Mark without a surname is obviously the first Mark that comes to your mind: Mark Knopfler.
Jokes aside, I'm not native english and I'm trying hard to understand every single word he said in this video. Youtube automatic subtitles do help, but they sometimes are sketchy. In particular Mark says something at 3:23 that Youtube transcripts as
which I'm not able to translate in italian, but, let alone italian language, if you only could explain me what that sentence means in plain english, or what else Mark is really saying there, I'd