Anyone who's had to muck with a giant piece of spaghetti code realizes how dicey it is to start changing things you don't really understand.

Projects like this and maybe tens of thousands of others in the future could interact to create strange changes in the wild that no one would be able to completely explain.

Maybe I'm just too much of a Luddite, or just an idiot (OK, I'm a complete fucking idiot), but projects like this and the thousands that are sure to follow give me an impending sense of doom.