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OpenID Summit Tokyo 2026 "Special Edition" Closing Keynote

Events

OpenID Summit Tokyo 2026 “Special Edition” Closing Keynote

The tickets apparently sold out instantly, so I had not introduced this event here; however, tomorrow, August 26, I will appear at the OpenID Summit T…

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Light-Transmitting Concrete

I found an interesting material: concrete that transmits light. “Light-transmitting concrete” may sound baffling, but it is actually made by embedding numerous optical fibers orien…

Music

The Marriage of Figaro

As the first cold wind of the year blew through Tokyo, I went to the Shinjuku Bunka Center to see Mozart’s opera, The Marriage of Figaro. It was a performance by young members of t…

Abnormal Weather After All

This morning’s rain was terrible. The Tokaido Line and other services had stopped, and in Shizuoka, cars were submerged and a person aged 69 died. Meanwhile, there have been…

Disc Golf at Showa Memorial Park

Today, I went to Showa Memorial Park with my family to play disc golf. It was my first time visiting the place where sports equipment is rented. I have been to Showa Memorial Park…

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