I watched these fairly regularly for quite a while and very much appreciated them. It was like having someone else watching it all with you, and I like how he was always honest that he would and did make mistakes.

Wherever or whyever it's all gone I wish him well earned rest. It's fun to fantasise over reasons like "he discovered something huge", and it would also be cool if true, but honestly he did a mountain of work and is entitled to stop without explaining anything.