What we have seen in financial markets should bring home to us all that the central organising principle of this 21st century is interdependence. For the century just past, interdependence may have been one option among many. For the century that is to come, there is no longer an alternative.

As nations we should also commit afresh to righting past wrongs. In Australia we began this recently with the first Australians - the oldest continuing culture in human history. On behalf of the Australian Parliament, this year I offered an apology to indigenous Australians for the wrongs they had suffered in the past.

Because the time has come, well and truly come, for all peoples of our great country, for all citizens of our great commonwealth, for all Australians - those who are indigenous and those who are not - to come together to reconcile and together build a new future for our nation.

There comes a time in the history of nations when their peoples must become fully reconciled to their past if they are to go forward with confidence to embrace their future.

Hitting is the most important part of the game. It is where the big money is, where much of the status is, and the fan interest.

I find it fascinating that a lot of business books that do well are from people who've never made any money in business.

Since the beginning of HQ Trivia, when only 48 people logged in, the chat section was lighting up with comments such as 'This is so cool!' So, we hooked those early users with alluring graphics and sound, a fast-paced test of wits, interactivity with a live and entertaining host, and the lure of winning free money.

Challenges keep evolving as you move into different stages. When you are at a prototype stage, it's about getting that sustenance money. Then, talent becomes an issue; your early hires are difficult to get when you aren't too big. Later, it's about handling growth; then, you have competition.