Money is like poetry because both involve learning to communicate in a compressed language that packs a lot of meaning and consequence into the minimum semantic space.

To make three films out of one shortish book, they have to turn it into an epic, just as 'Lord of the Rings' is an epic. But 'The Hobbit' isn't an epic: its tone is intimate and personal, and although it's full of adventures and excitement, they're on a different scale to those of the bigger book.

Often, in horror films, the single most effective device for building a sense of scariness is the soundtrack: the clanking of chains, the groaning of off-stage ghouls, the unmistakable sound of a cannibal rustic firing up a chainsaw.

I think the Internet was invented specifically to stop people finishing their books. And it does quite a good job. I don't have blocking software, though I could easily imagine needing it. I just don't do that stuff until I've got the words done for the day.

Let's hope brands recognize that the true power of this technology is not its reach but its ability to communicate substance that adds meaning to our lives. Otherwise, brands will be investing in technology that consumers simply won't buy.

Most of our children have access to Internet-accessible technology, yet most of us are actually not paying much attention to what they're doing online.

In the world of maternal health, cell phone technology is being used to provide prenatal care, linking pregnant women to health care providers when they can't otherwise reach healthcare facilities.

My parents had a software company making children's software for the Apple II+, Commodore 64 and Acorn computers. They hired these teenagers to program the software, and these guys were true hackers, trying to get more colors and sound and animation out of those computers.