Roundup: Recent sketches on concurrency, data design and performance.

Recently I've been doing some presentations as well as just general sketches of some things I've been thinking about regarding optimization, concurrency and data design. I've been posting them on Twitter to gather feedback from my pals there. A couple have caused a little controversy, but remember that all of them are given in the simple spirit of sharing ideas among peers. And don't forget it's all in good fun!