The Boy and the Heron’s Oscar win has prompted debate over whether the 83-year-old could put down his pencil

It could have been the perfect send-off – recognition at the Academy Awards of the artistry of Japan’s peerless animator Hayao Miyazaki.

The moment The Boy and the Heron was named the winner of best animated feature in Los Angeles last weekend gave Japan a chance to reflect on Miyazaki’s towering influence, and contemplate whether the 83-year-old is truly finished making films.