Trees are essentially growing chairs. There are lots of primates that sit and sleep in them.

The rewards for biotechnology are tremendous - to solve disease, eliminate poverty, age gracefully. It sounds so much cooler than Facebook.

My laboratory and my obsession is about safety and building/engineering safety. It's not just a matter of saying we want the world to be safer; we have to create technology.

We will have to make a decision, as we go into new environments outside of earth, whether we want to drag along with us all our pathogens. We can, or we can't - it's up to us - but I consider that part of genome engineering is how we interact with the huge part of our genome which is our microbiome.

When a marriage founders, this may well be cause for tremendous sadness, but it's not a failure of spirit or character. People change, their goals and dreams alter, their ideas of themselves grow, or they just meet someone they like better.

It's a remarkable pace of which things change and adapt, and it's hard for us to keep up with as a species.

I don't think that now I am a star. I don't get too much time to interact with people, and I am quite busy with work. I work. I come back home, and my loved ones are still the same. They will never change. And, I travel. I have not realised or internalised that life has changed.

We know that no algorithm can solve global poverty; no pill can cure a chronic illness; no box of chocolates can mend a broken relationship; no educational DVD can transform a child into a baby Einstein; no drone strike can end a terrorist conflict. Sadly, there is no such thing as 'One Tip to a Flat Stomach.'