Dyson: At the beginning, it’s safe to say I didn’t have a plan. I just tried to get clever people to join me by being belligerent; believing in my idea so strongly that I convinced others to do so too (they were penniless engineering graduates, so perhaps it wasn’t too hard!). I started out in a coach house at the end of the garden with a handful of engineers. Now we have 3,000 so I must be doing something right!