In the future, these blood tests will allow us to offer treatments for Alzheimer's disease 10, 20, or even 30 years before symptoms start to manifest, much like how we currently handle cholesterol. This early detection and intervention will be our strategy for combating Alzheimer's.

I often have odd conversations where people say, 'Should we take happiness seriously?' And I pause and ask, 'How do you feel about misery and suffering—are those not bad? Do they not matter at all?' Then they admit, 'Oh yeah'. I then ask 'so, don't you think it's good if people enjoy their lives?' And they say, 'I suppose so.' So, everyone agrees happiness matters to some extent – but we often forget this and need to bring it to the surface.

Western societies have to heed the strategies of the east where innovation and progress are fundamental parts of their attitudes to business. Japanese carmakers built their sustainability from their constant ability to innovate rather than being cheaper.

The most successful teams are the ones who present with authenticity and passion. You could have the next cancer cure, but unless your audience believes in you, they won't invest in you.

Right now, biological evolution is not the main engine of change in the human condition. Instead, social and technological development, which occur on shorter timescales, are the predominant change-makers. In particular, it seems that we are gaining capabilities to directly modify human nature—through genetic selection, gene therapy, cognitive enhancement drugs, life extension treatments.