In order to achieve a true understanding of string theory, some new idea will be required, and most likely, some break with the concepts on which we've traditionally based physical theory.

The Big Bang theory is the idea that if we go back early enough in the history of the universe - and we can do this, of course, by looking at starlight coming to us from billions of years ago - we will see a very hot and dense period where the universe was much smaller, denser, and hotter.

Some wonder whether some day we will arrive at a theory of everything and run out of new problems to solve - much as the effort to explore the earth ran out of new continents to explore.

Quantum field theory was originally developed for the treatment of electrodynamics, immediately after the completion of quantum mechanics and the discovery of the Dirac equation.

We all have, in my family, what we call the 'Vorderman bottom' - a sticky out, bigger-than-normal, signature, of the rear variety. It's been a family joke all our lives - even my lovely brother has one. I know the lines to all the good singalong big bum songs.

I'm very focused on what I do professionally, and I'm very focused on my family, and I don't really get too stressed out about what people say or what other people think. In fact, it's not on my radar at all. If there's anything negative, I don't want to know about it. I just do my own thing and get on with my life.

On 'Transparent,' I work closely with LGBTQ and gender-nonconforming people who are now my close friends - truth be told, we're all more like family.

You could say that Fleetwood Mac is a bit of a dysfunctional family, but we are a family.