Events keep happening that seem inexplicable and out of control. Donald Trump, Brexit, the War in Syria, the endless migrant crisis, random bomb attacks.

Throughout the western world, new systems have risen up whose job is to constantly record and monitor the present - and then compare that to the recorded past. The aim is to discover patterns, coincidences and correlations, and from that, find ways of stopping change. Keeping things the same.

Nobody trusts anyone in authority today. It is one of the main features of our age. Wherever you look, there are lying politicians, crooked bankers, corrupt police officers, cheating journalists and double-dealing media barons, sinister children's entertainers, rotten and greedy energy companies, and out-of-control security services.

At its heart, 'South Park' has a touching faith in human beings: that despite their absurdities and flaws, people have the capacity to create a better world.

There are two - parallel - universes of science. One is the actual day-to-day work of scientists, patiently researching into all parts of the world and sometimes making amazing discoveries. The other is the role science plays in the public imagination - the powerful effect it has in shaping how millions of ordinary people see the world.

Of course there are many factors that led to the Iranian revolution, but back in 1951, the Anglo-Iranian Oil Company - which would later become BP - and its principal owner, the British government, conspired to destroy democracy and install a western-controlled regime in Iran.

The latest rule is: you cannot have protectionism - otherwise you will get a world war. Other rules say you cannot have collective ideas that involve the surrender of the individual to the group - otherwise, you get totalitarianism or, even worse, religion.

I have always wanted to make a series of films which would be like an 'emotional history' that conveys what it feels like to live through history as an experience rather than a grand story. It would be about the relationship between the tiny fragments and moments of personal experience, and the continual backdrop of big events.

At the end of the nineteenth century, a fanatical craze for physical fitness swept through Britain. Millions of men and women took up gymnastics, body building, and other physical exercises. Such a thing had never happened before, and it was given a name - Physical Culture.

In our age of individualism, we see computers as ways through which we can express our individuality. But the truth is that the computers are really good at spotting the very opposite. The computers can see how similar we are, and they then have the ability to agglomerate us together into groups that have the same behaviours.

Sometimes history repeats itself. And sometimes it doesn't.

In our age of individualism, we see computers as ways through which we can express our individuality. But the truth is that the computers are really good at spotting the very opposite. The computers can see how similar we are, and they then have the ability to agglomerate us together into groups that have the same behaviours.

Henrietta Lacks' cells are immortal. They are known as the HeLa cell line, and they have become deeply involved in all sorts of medical and genetic research - sometimes in the most unexpected ways.

I have a suspicion that the politicians' revival of the old behaviourist ideas and techniques will be helped and reinforced by a powerful ally - the machines we have built. The computers.

In 'Mad Men,' we watch a group of people who live in a prosperous society that offers happiness and order like never before in history and yet are full of anxiety and unease. They feel there is something more, something beyond. And they feel stuck.