[oneJob]

To take that idea a step further, you'd be really impressed at the complexity on the other end of the power cord. I once heard it put like this...

Nuclear power plants (I suppose you could say the same for any other, but this example was given using nuclear power) exist basically so that, a few miles away someone can plug their vacuum cleaner into the wall, hit a switch, and have it work, without having to give it any thought whatsoever. All the complexity of nuclear power, so that you don't have to think about it.

I think this analogy is especially appropriate here, as the design goals of Dyson are similar. Intense engineering so that you have something that does a simple job exceedingly well without additional problem solving required by the user.