So...roll call, how many of us interested in QFT have ever bothered to watch Charlie's videos on the topic all the way through? The one on notation clocks in at an astounding 45 minutes and I'll confess that even though I've been working on the notation system with him for nearly a year, I've never watched the video all the way through. 45 minutes was just too long a commitment to make for something that didn't showcase any spinning and was all theory and instruction.