“I think that is a huge part, a fundamental part, of my job. When you’re talking about the future, and as a designer that’s where my head is, then it’s extremely rare that I feel that I’m working in response to an articulated problem. "I could count the occasions that I’ve done that in the last 25 years on the fingers of one hand. It’s extremely rare that what we do is a response to somebody articulating a problem. By definition, you didn’t know it was a problem until you were aware of a better way of doing it. The tremendous challenge here is that when you have been solving a problem a certain way for a long time, so many things convince you that, of course, that’s the best way of doing it, not least habit. "When you have been solving a problem a certain way for a long time, the very idea that there could be a better way of doing it, can seem almost sacrilegious. It can seem extremely unlikely, so what you have to do is work by taking a leap of faith. That faith is based on the thought, ‘I’ve been here many times before and many times before we have found a better way of doing this’. And you just have to believe that’s the case and you keep on. "Sometimes, the vast majority of times, we are able to find a better way of solving a problem.”