In one memorable episode the future peoples all have a 'grain' implanted behind their ear, which records everything they do: every unsuccessful job interview, dinner party and marital infidelity. The purpose is to allow all memories and past actions to be reviewed and agonized over.
It's one of the more freaky alternate realities in the show, and it looks as though current technology may be catching up.
Martijn Wismeijer, founder of mrbitco.in, pulled the stunt in order to highlight the value of cryptocurrencies, but also hopes to make implanting more socially acceptable. His vision seems to be that one day the human body itself will become part of the internet of things i.e. opening doors with the palm of our hands and flicking on devices with the wave of a wrist.
In the video the operation does seem relatively quick and painless... and the heavy handlebar mustache convinces me that this is a guy who knows what he's about... Hmm.. nope, I really can't see anything wrong with this one!
It seems the future really is in the palm of our hand (sorry... sorry about that).