It may be that we live in an endless universe, both in space and in time. And there've been Bangs in the past, and there will be Bangs in the future.
The only people who can fix Africa are talented young Africans. By unlocking and nurturing their creative potential, we can create a step change in Africa's future.
If the universe sprung into existence and then expanded exponentially, you get gravitational waves traveling through space-time. These would fill the universe, a pattern of echoes of the inflation itself.
If you think about the actual problems we are facing - all the crises - we have the means to solve these crises. The past has shown us we are able to do things we never imagined we would be able to do.
Scientists cloister themselves away from the rest of society, happy just to receive their next grant. They lose their connection to a purpose.
Quantum physics is one of the hardest things to understand intuitively, because essentially the whole point is that our classical picture is wrong.
The world is not made up of particles and waves and beams of light with a definite existence. Instead, the world works in a much more exploratory way. It is aware of all the possibilities at once and trying them out all the time. That is a hard thing to picture.
Quantum physics forms the foundation of chemistry, explaining how molecules are held together. It describes how real solids and materials behave and how electricity is conducted through them... It enabled the development of transistors, integrated circuits, lasers, LEDs, digital cameras and all the modern gadgetry that surrounds us.
You have no beginning of time. It's always been there.
I'd be perfectly happy with a mathematically precise description of how time began. I see science and religion as being two completely different things. I don't see science as relevant to the question of whether or not there's a God.
If you are a manager with a new owner who has more ideas than knowledge, all you can do is get your head down and do your best, which is what Malky Mackay did at Cardiff.
I'm glad to see goal-line technology working; we should have had it for years. I do believe we will soon see managers being allowed one, or two, challenges.
A few eyebrows have been raised at Adel Taarabt joining Milan. Having worked with Adel for two years, I am not as surprised as most people seem to be. He is a player of immense ability and, if he is handled right, and motivated himself, he can win games at any level.
It is a fine line between communicating and being too chummy. My players, when I've been promoted, have been upset by top-flight refs being mates with opposition players.
It's good to see Graham Alexander back in the game. He was such a tremendous professional as a player so I know he'll give management his best shot.