The most common mistake is to stop challenging when things are going well. I recognise failure as not having made a business better than when you were first involved.

It is natural that a society would want to keep what they think works, the status quo. We are also acutely aware that technological changes alters society in unpredictable ways. It is the uncertainty associated with change—especially the fear of losing what we value—that leads to resistance to change.

Resilience is the responsibility and opportunity of the community. We can either face it and learn from it or we can pretend it's not happening. We have to explicitly face the fact that resilience is the responsibility of all of us, together.

Don't aspire to be an entrepreneur. Aspire to create something that solves a problem. My message to young people with an idea is build a prototype and test it. Test it again and again, making the changes, learning from failure.

The skills that get them to one point won't carry them the rest of the way. We talk about the ticking time bomb. The ticking time bomb is these very characteristics — when you're trying to scale, and things are getting more complex, and you have to work through other people — they blow up.