Today's Guardian carries two interviews with pairs of eminent scientists; David Attenborough and Richard Dawkins on natural science, and Brian Cox and Stephen Hawking on physical science. The sub-editor has rather unfortunately given the interviews the series name of 'Gods of Science', which is rather aggrandising and misses the point that it is just people, plain and simple, who reveal the rules of science.
Anyway, nit-picking aside, it's nice to see the great respect that exists between the men, especially the obvious high regard that Brian Cox holds for the work of Stephen Hawking. For my own part, David Attenborough and Richard Dawkins are two of the people that I consider to be great and worthy inspirational figures, so this interview is of keen interest to me.
I'd advise you to read the full texts yourself, but I thought I'd put here some of the answers that I thought were most interesting or deserving of greater consideration.
What is the one bit of science from your field that you think everyone should know?
David Attenborough: The unity of life.
Richard Dawkins: The unity of life that comes about through evolution, since we're all descended from a single common ancestor. It's almost too good to be true, that on one planet this extraordinary complexity of life should have come about by what is pretty much an intelligible process.
Stephen Hawking: Science can explain the universe without the need for a Creator.
Brian Cox: I think everyone should know a few basic facts about the universe. It began 13.7 billion years ago; our sun and solar system formed just under five billion years ago; there are 200 billion stars in our Milky Way galaxy, and 100 billion galaxies in the observable universe. These are wonderful discoveries, and it's quite astonishing we've been able to find these things out from our vantage point on our tiny Earth.
What problem do you hope scientists will have solved by the end of the century?
SH: Nuclear fusion. It would provide an inexhaustible supply of energy without pollution or global warming.
BC: I share that view, that the provision of clean energy is of overwhelming importance. What frustrates me is that we know how to do it as physicists, how it works. It is an engineering solution that is within our grasp. I don't understand why we don't seem to want it enough at the moment.
DA: The production of energy without any deleterious effects.
What is the most difficult ethical dilemma facing science today?
BC: I think one of the great challenges for the scientific community is how to deal with arguments from people with genuinely held views that are demonstrably wrong and potentially damaging. I'm thinking of issues like the vaccination of children or the imperative to reduce greenhouse gas emissions. The science is very clear on these issues, and science really is the best guide we have to facing global challenges. The dilemma is how to convince quite vocal minorities that a rational and scientific approach is no threat to their political or religious beliefs – it's just the best approach.
SH: It is over genetic engineering. It should soon be possible dramatically to increase the intelligence and life span of a few individuals. They and their offspring could become a master race. Evolution pays no regard to social justice. It was not fair on the Neanderthals they were replaced by modern humans.
DA: How far do you go to preserve individual human life? I mean, what are we to do with the NHS? How can you put a value in pounds, shillings and pence on an individual's life? There was a case with a bowel cancer drug – if you gave that drug, which costs several thousand pounds, it continued life for six weeks on. How can you make that decision?