Author Archives: Simon

About Simon

Hi. I'm Simon Rubinstein-Salzedo. I'm a mathematics postdoc at Dartmouth College. I'm also a musician; I play piano and cello, and I also sometimes compose music and study musicology. I also like to play chess and write calligraphy. This blog is a catalogue of some of my thoughts. I write them down so that I understand them better. But sometimes other people find them interesting as well, so I happily share them with my small corner of the world.

One Interesting Thing: The preponderance of 2-groups among finite groups


This is a preliminary discussion of my knowledge about 2-groups. There are still many questions I have, and I would appreciate any insights. When we first learn about group theory, we learn some theorems about how to decompose finite groups, … Continue reading

Posted in Uncategorized | Leave a comment

One Interesting Thing: Homomorphic Encryption


I plan to start writing about one interesting thing I learn each week. This will serve two purposes: forcing me to think about interesting things, and also forcing me to write. Here is the first installment in the series. Suppose … Continue reading

Posted in Uncategorized | Leave a comment

An experiment in imbalances


Ordinarily, when I play chess, I favor relatively balanced positions, in which the result of the game is more likely to hinge on positional ideas, rather than tactics. Hence, I do not sacrifice material often, unless I have calculated that … Continue reading

Posted in chess tournament | Leave a comment

On (Not) Learning Things


I have to learn new things constantly in order to keep myself entertained. I’m rarely interested in doing things that don’t allow me to learn, and when I look back at things I have done that don’t teach me anything, … Continue reading

Posted in education, truth | 4 Comments

My most stressful game


This past weekend, I went to Burlington to play in the Vermont Open. I had a fairly good result, scoring 2 wins, 2 draws, and 1 loss. My most interesting, and also my most stressful, game was the one from … Continue reading

Posted in chess tournament | 1 Comment

I shall have to be contented with a tulip or lily


I came to the Labor Day tournament this year full of high expectation. I’d just done a large overhaul of my openings and was feeling quite well-prepared. In my first game, I faced Philipp Perepelitsky, whom I had known since … Continue reading

Posted in chess tournament, G&S titles | Leave a comment

Book review: Good and real


We don’t have to look very hard to find aspects of the real world that appear at first glance not to make sense or that are perplexing. With careful analysis, however, we can frequently make sense of weird scenarios. Gary … Continue reading

Posted in bias, book reviews | 5 Comments