Most average users of Bitcoin should watch this, to see how much work goes into core development and why these people should be appreciated.
Greg gives some key indicators of where Bitcoin is going in future, with burning points like privacy and multisig. {TreeCheckSig & MultiCheckSig}
It's like being backstage on a big show. You see all the work going into a production and not just watching the show.
Nodes seem to be the most attacked entity in Bitcoin, and his work in countering this is crucial.
