Countries that criminalise LGBT+ people are losing tourist revenue because LGBT+ tourists and their straight friends and families won't go to such countries. There is also a very significant brain-drain from countries that victimise LGBT+ people.

These policies are, in the long term, very dangerous for productivity, growth, entrepreneurial spirit and wealth generation and will create further issues within the developed economies.

I firmly believe that a society cannot heal from the wounds of war without accountability for serious international crimes. How can a society move towards a shared future while fundamental disagreements about the past and about responsibility for past crimes persist?

Dehumanizing the victim through the internet has enabled people to commit crimes and not worry about their conscience.

Twitter as a service is very oriented towards people providing short, succinct and relatively immediate 'in the moment' updates on what they're interested in and how they feel- and at a very large scale. At the moment we have around 250 million twitter users! We felt it was the ideal environment for us to test our hypotheses that we could, in fact, gauge the public's mood state from this type of data- and use that to study and even predict socioeconomic phenomenon of which the market is just one.

There is a rationality to believing in conspiracy theories that purport to identify somebody acting in secret to harm or gain an advantage that's illegal or immoral, over somebody else without their knowledge or consent.

we make ourselves miserable, or we make ourselves happy. The amount of work is the same…

The 'Silicon Valley' mindset is one where you race ahead and build technology, and if people adopt it and use it, you scale. Success in this mindset is measured in terms of numbers of users, revenue and valuation. How do these measures illustrate social good though?

He told me that his returns got so much better in the Bahamas, why? Because he got the Wall Street Journal a few days late! It's so difficult to mentally distance yourself from the herd and so perhaps physically distancing yourself from the herd is a good idea.

You may become rich, engage in philanthropy and help a million people but the only way you can help a billion people is by building a profitable business. Making money has almost become a taboo! People say, 'oh my god! You're making money?' and I say, 'you know what? I'm so proud that my business makes money… it's the only way I can scale and make a huge impact…'

Biology doesn't need to be obeyed, but it always needs to be considered. If we discuss gender differences, we cannot act as if biology doesn't exist. We live at a time where a group of people – for ideological reasons – have made it clear that they think we can shove biology aside, that everything is culturally constructed, and we can act like biology doesn't exist. That's not going to work, that's not how the world works.

By the time he was still scrolling through his options, I simply showed him the answer on my phone. He was taken aback, admitting that this was a far superior approach. This experience exemplifies the revolutionary nature of answer engines.