There¡¯s mischief brewing one fall night. Someone pours some sake and another neatly stacks mochi on a dish with maple leaves as shamisen music softly plays from a smartphone speaker.

¡°What a nice evening for moon viewing,¡± a friend says.

¡°Yep, that sure is a nice moon,¡± says the other, gesturing not to the sky but to my smooth cranium. ¡°Big and round.¡±