Apartments are getting smaller on a whole. Houses are getting smaller. People don't need great big vacuums anymore.

Business is constantly changing, constantly evolving.

Engineering undergraduates should not be charged fees. They should receive grants, not student loans, and the government will get the money back long-term from increased exports.

Everyone has ideas. They may be too busy or lack the confidence or technical ability to carry them out. But I want to carry them out. It is a matter of getting up and doing it.

Hire inexperience. This year we plan to hire 200 engineers - half of whom are recent grads. Young people are not burdened by years of experience. They haven't learned - or been told - what is right or wrong. With engineering, there is no tried and tested path. You try, and fail, and fix, and fail again.

I've obviously used fans - I wouldn't say all my life, because we couldn't afford them when I was young, but from my 20s and onwards we've had to use fans. And I've always loathed them. Everything about them. The way you adjust them, getting them at the angle you want. Carrying them. Cleaning them. The danger of putting your finger in them.

If you really want to improve technology, if you want things to work better and be better, you've got to protect the person who spends a lot of effort, money, and time developing that new technology.