We thought long and hard about how to describe what each area of D8 does in as few words as possible. Then we had what you might call a brainwave / moment of clarity / epiphany (depending on whether you're older than 25 / an alcoholic, drug abuser or sleep deprived parent of new children / slightly lost) and realised that if you're here you probably want a reasonable amount of information. So, check the website for more details.