Schumpeter, invited last year to a technical college in northern Tokyo, was surprised to be shown something that the oily-fingered schoolboys had put together in the workshop: a car that whizzed around the playground at 620km per litre (1, 747 miles per gallon).
The next Tuesday, when Aviad was supposed to pick her up after the workshop, he arrived half an hour early, parked his car in the lot, and went to find her.