Still trying and failing to plan a trip to Japan, I have at least found one absolute must: a pilgrimage to see the Future Human Washing Machine. Following its unveiling last year, this JPY 60m (£280,000) capsule, in which a person is washed, thanks to the magic of microbubbles, and returned to the world in 15 minutes without moving a muscle is now on show in electronics shops in Tokyo.

It’s essentially a hi-tech car wash, but for humans: the dream. As my best friend says, “I have never needed........

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