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Professor Kazuo Matsuzaka
Professor Matsuzaka has passed away. He was one of my mentors and was widely known for having written many excellent introductory mathematics books. He had suffered from kidney dis…
A Christmas Present from the OpenID Foundation
And so, here is a Christmas present for everyone from the OpenID AB+Connect WG. As of today, the OpenID Connect specifications have entered an Implementer’s Draft review peri…
The sp-mode Mail Problem
The sp-mode mail problem—the one in which email addresses were switched—has become a hot topic. I could not fully understand it just by reading the articles, so I drew a diagram wh…
A Dutch SIM: Ortel APN Settings and More
Just after leaving customs at Schiphol Airport, there is a shop selling unlocked phones and SIM cards. There, I bought a prepaid SIM from an MVNO called Ortel. €24.95=€9.95(sim car…
A Letter from a Friend Facing Death—On Privacy and Presence
A little while ago, I received an email from a friend. He had played a fairly central role since the early days of the Internet and, for roughly the past 10 years, had been working…
Romance from the Opera “Maître Pathelin”
Ever since hearing this piece on Ayako Takagi’s CD “Sicilienne”, I had thought it was beautiful without properly researching it. Feeling remiss, I finally looked into it. François…
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