I've had the MMORPG bug for years. I know realistically to build one as the author mentioned takes a large team. I am fairly knowledgeable in many of the more technical topics the author mentions (Platform Arch, OS Kernel, concurrency, performance programming, 3D graphics, security, etc). Personally, I am just hoping to build out enough of my engine to start down that path. We'll see where life goes from there. No illusions about doing it solo. Been in the trenches for over 18 years (mainly performance, security, graphics, networking and systems). Either way, it will be fun working on the system.