The roof now closed because of rain, Djokovic, by now taking an age to deliver each serve, dug deep to hold his next service game, but Berdych's double-fisted backhand was beginning to yield results.

BBC: Novak Djokovic makes short work of Berdych in Melbourne

The system he created and the worlds that came out of it are deep, interesting and serve as valuable tools for people to learn many different things about themselves, their lives and the reality.

BBC: Role-playing games pioneer dies

Critics warn that many of these new developments will only serve a tiny elite, exacerbating an already deep divide between the haves and have-nots.

CNN: Africa's 'new cities': Urban future or utopian fantasies?