If you look at our current technology level, something strange has to happen to civilisations, and I mean strange in a bad way. And it could be that there are a whole lot of dead, one-planet civilisations.

Excellence matters, and technology advances so fast that the potential for improvement is tremendous.

Darwin has interested us in the history of nature's technology.

Today, we celebrate the fact that this historic document has survived a turbulent five decades, which have seen some of the most extraordinary developments in the evolution of human society. These include the collapse of the colonial system, the passing of a bipolar world, breath taking advances in science and technology and the entrenchment of the complex process of globalisation.

The lessons of history would suggest that civilisations move in cycles. You can track that back quite far - the Babylonians, the Sumerians, followed by the Egyptians, the Romans, China. We're obviously in a very upward cycle right now, and hopefully that remains the case. But it may not.

Civilisation had been restored to the Island. But now the political fabric which nurtured it was about to be overthrown. Hitherto strong men armed had kept the house. Now a child, a weakling, a vacillator, a faithless, feckless creature, succeeded to the warrior throne.