You want to evaluate future borrowers, but in order to train an algorithm that will help you identify future defaults, you have to train it and evaluate it on past data.

If competition for Kaggle's top talent becomes fierce enough among banks, insurance companies, hedge funds - we hope the world's best data scientists will earn more than $50 million per year, just like the world's best hedge fund managers.

It turns out that with Twitter data alone, we can go quite some way into figuring out someone's personality.

Startup stories are always smoother in the telling than they are in reality. A startup is not one, but a series of 'Aha!' moments, and some which seem like 'Aha!' moments but turn out not to be.

Every day growing up, I had this dream about the World Cup: I score the winning goal. In the final minute. With my butt!

We need quantitative assessments of the success of education. We need certification and qualifications both for teachers and for pupils. It is not a choice between quantity and quality, between access and excellence. Both of these will happen together if people really do believe in the importance of education to change lives.

Being solitary is being alone well: being alone luxuriously immersed in doings of your own choice, aware of the fullness of your won presence rather than of the absence of others. Because solitude is an achievement.

Success is not an accident. When you put yourself in the right place at the right time, then you're likely to be more successful because of how you prepare yourself on a daily basis.