If you are the record label who owns Lady Gaga, and you have a new artist coming up, you can say, 'Let's have the artist play just before Gaga.' Now you've exposed the huge Gaga audience to the new artist. It's similar to showing a trailer before a movie. The hit creates a hit.

Jay Z is building a range of businesses just on the strength of his brand. Lady Gaga has formed really interesting partnerships. Justin Bieber and his manager Scooter Braun are investing in a number of different companies and also promoting them in many ways.

In investing, we intuitively think we should make a number of small bets. A blockbuster strategy is the opposite. It means making fewer huge investments. But it turns out to be safer.

With so much money invested in their most promising projects, Hollywood executives will understandably do everything in their power to make their products a success in the marketplace. Therefore, the most expensive films often also get the highest marketing budgets, and are slotted into the most favorable opening weekends.

Rocket scientists agree that we have about reached the limit of our ability to travel in space using chemical rockets. To achieve anything near the speed of light we will need a new energy source and a new propellant. Nuclear fission is not an option.

I think that if you can work and travel, that is the best deal you can strike.

They say travel enables you to encounter your opposite. If this is true, I think I may have met mine in a shepherd's hut in Transylvania.

I have amazing memories of being able to travel and being able to have family all over the world.