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john sundman's avatar

At the ten-hours-since-posting mark, with one "like," no comments and no shares, A Quick Visit to Shelfie City is well on its way to being my least-loved post yet. Well, that's OK. I still think those shelfies are adorable and actually hold a lot of information. I wish all authors would solicit and post shelfies taken by their readers. I'm willing to bet the shelf of the typical readers of Tom Clancy novels don't look anything like the ones in this essay.

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Blake's avatar

Ok... I'll bite. Speaking of books....

I responded to a comment about the Category Theory book in the photo that headed the Andreessen post, noting that Category Theory is the most recent of several attempts by Mathematicians to plaster over the cracks in their foundations that appeared between in the late 19th and early 20th centuries. When I was an aspiring mathematician, I noted, before Cat Theory was invented, I'd learned a different one.

Unfortunately, I couldn't remember its name.

I am now a code monkey. I know about algorithms. It took only a couple seconds to come up with one that would get me to the name of the approach I'd studied. The professor under whom I'd studied was a legendary proponent of the approach. If I looked him up, I'd be certain to come across its name. Unfortunately I couldn't remember his name, either. All I needed to do, though, was go through the names of all of my former professors. I went to the web page for my school that listed all of the emeritus math professors.

I spent a thoroughly enjoyable half hour, recalling the names of former teachers. There was the guy that, incredibly, bolstered me through his class, because I needed it to graduate, even though I was taking a dance class that overlapped with his. There was the guy that really didn't have a lot of time for students: he left to start his business at the end of the quarter. There was the guy that gave me a B because he was my dad’s student. All great fun until, down in the "S"s I recognized my guy: a genius, a legend, a great guy and a pretty good teacher. A quick trip to Wikipedia and, voila: Intuitionism.

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