Post-human intelligence will develop hypercomputers with the processing power to simulate living things - even entire worlds. Perhaps advanced beings could use hypercomputers to surpass the best 'special effects' in movies or computer games so vastly that they could simulate a world, fully, as complex as the one we perceive ourselves to be in.

As regards my own 'philosophy,' I continue to be inspired by the music, liturgy and architectural tradition of the Anglican Church in which I was brought up. No one can fail to be uplifted by great cathedrals - such as that at Ely, near my home in Cambridge.

Some of the 'aha' insights that scientists strive for may have to await the emergence of post-human intellects.

To most people in the U.K., indeed throughout Western Europe, space exploration is primarily perceived as 'what NASA does'. This perception is - in many respects - a valid one. Superpower rivalry during the Cold War ramped up U.S. and Soviet space efforts to a scale that Western Europe had no motive to match.

As social media is less about technology and more about relationship building, we are starting to see more women have a heavy influence if not dominant role in the social media space. It's no wonder that Facebook is being run in part by chief operating officer Sheryl Sandberg.

The Internet - central to modern life - provides new ways for our enemies to plan and act against us.

Because I do think - not just in building AOL - but just the world in which we live is a very confusing, rapidly changing world where technology has accelerated.

The interesting thing about the Internet is that it has created a kind of alternative circle of friends for people.