Latest posts from tlehman.blog https://tlehman.blog/posts A funny joke about memes and genes (tweet): “memes are kinda like DNA if you think about it. has ... Tue, 14 May 2024 18:17:04 +0000 https://tlehman.blog/posts/64 https://tlehman.blog/posts/64 About a week ago, this paper made a big splash on 𝕏: “KAN: Kolmogorov-Arnold NetworksZiming Liu, ... Fri, 10 May 2024 00:32:15 +0000 https://tlehman.blog/posts/63 https://tlehman.blog/posts/63 For an introduction to topological spaces see my post: Topological spaces: from sets to spaces T... Thu, 09 May 2024 23:28:38 +0000 https://tlehman.blog/posts/62 https://tlehman.blog/posts/62 In response to this tweet: “Pre-Reformation "Christendom" was a superior and more advanced form o... Tue, 23 Apr 2024 21:14:13 +0000 https://tlehman.blog/posts/61 https://tlehman.blog/posts/61 Saint Hubert became bishop of Liège in 708 AD. Born in 656 AD to a Frankish duke. Later marrying ... Wed, 03 Apr 2024 21:34:27 +0000 https://tlehman.blog/posts/60 https://tlehman.blog/posts/60 I've gotten my emacs config posted here, and then I used ollama, a server written in Go, to pull ... Sat, 23 Mar 2024 05:17:06 +0000 https://tlehman.blog/posts/59 https://tlehman.blog/posts/59 Fun coincidence that I read this quote on St. Patrick's day: “The date of Patrick's death is unce... Sun, 17 Mar 2024 21:52:27 +0000 https://tlehman.blog/posts/58 https://tlehman.blog/posts/58 • From Timeless: A History of the Catholic Church: • Some notable parts from the chapter: The E... Sat, 09 Mar 2024 07:35:44 +0000 https://tlehman.blog/posts/57 https://tlehman.blog/posts/57 I've been using Ubuntu Linux since 2004, the Warty Warthog distribution. It's been 20 years. Back... Fri, 08 Mar 2024 00:42:55 +0000 https://tlehman.blog/posts/56 https://tlehman.blog/posts/56 So far during Lent I've read Confessions by St. Augustine and Walking with Mary by Edward Sri. On... Mon, 04 Mar 2024 01:28:00 +0000 https://tlehman.blog/posts/55 https://tlehman.blog/posts/55 The /now page is live. I wrote about this 3 days ago in /about /ideas /now What I still need to ... Fri, 01 Mar 2024 01:22:01 +0000 https://tlehman.blog/posts/54 https://tlehman.blog/posts/54 I love this: https://aboutideasnow.com/ It's a way to organize your personal site by making some... Mon, 26 Feb 2024 23:14:04 +0000 https://tlehman.blog/posts/53 https://tlehman.blog/posts/53 This Quanta article A New Agenda for Low-Dimensional Topology highlighted an important part of do... Mon, 26 Feb 2024 05:08:41 +0000 https://tlehman.blog/posts/52 https://tlehman.blog/posts/52 The title is obviously tongue-in-cheek, but this line from @pdyc's article Is ChatGPT making me l... Tue, 20 Feb 2024 17:18:10 +0000 https://tlehman.blog/posts/51 https://tlehman.blog/posts/51 Frequent readers of my blog will probably notice a theme emerging, posts named "Does \(X\) exist?... Mon, 19 Feb 2024 18:09:07 +0000 https://tlehman.blog/posts/50 https://tlehman.blog/posts/50 This is my first time practicing Lent, today is the first day of the 40 day season leading up to ... Wed, 14 Feb 2024 17:18:56 +0000 https://tlehman.blog/posts/49 https://tlehman.blog/posts/49 This article caught my attention: Orthodoxy’s Divisions Offer Glimmers of Hope for Healing With C... Tue, 06 Feb 2024 23:49:32 +0000 https://tlehman.blog/posts/48 https://tlehman.blog/posts/48 At work I've been working on a bug in pxp-agent where a filesystem rename operation works on POSI... Sat, 03 Feb 2024 14:03:50 +0000 https://tlehman.blog/posts/47 https://tlehman.blog/posts/47 The mathematical discipline of knot theory started from an idea by Lord Kelvin about what atoms m... Fri, 26 Jan 2024 21:35:05 +0000 https://tlehman.blog/posts/46 https://tlehman.blog/posts/46 Today at work I had fun upgrading an older corner of our codebase that was written in C++. The go... Tue, 16 Jan 2024 04:25:11 +0000 https://tlehman.blog/posts/45 https://tlehman.blog/posts/45 The phenomenal binding problem is something I just learned about. It's the problem in the philoso... Wed, 10 Jan 2024 06:47:55 +0000 https://tlehman.blog/posts/44 https://tlehman.blog/posts/44 • Starting Strength by Mark Rippetoe, recommended by a close friend. Going to start a serious wei... Fri, 05 Jan 2024 21:53:22 +0000 https://tlehman.blog/posts/43 https://tlehman.blog/posts/43 Previous Parts • 2024-01-02: Introduction to Puppet: Part 2 • 2023-11-30: Introduction to Puppet... Wed, 03 Jan 2024 21:45:58 +0000 https://tlehman.blog/posts/42 https://tlehman.blog/posts/42 This post is all about running and refining the puppet manifest defined in part 1. That manifest ... Tue, 02 Jan 2024 23:04:47 +0000 https://tlehman.blog/posts/41 https://tlehman.blog/posts/41 Exiting The Year of the Rabbit and all I will say on that front is that 2022 was better in many w... Mon, 01 Jan 2024 01:22:46 +0000 https://tlehman.blog/posts/40 https://tlehman.blog/posts/40 There's an idea I've been thinking about for almost a year now, it's a way of thinking about meta... Sat, 30 Dec 2023 00:13:55 +0000 https://tlehman.blog/posts/39 https://tlehman.blog/posts/39 What is the simplest kind of space you can define in mathematics? It helps to start with a famili... Fri, 22 Dec 2023 20:48:11 +0000 https://tlehman.blog/posts/38 https://tlehman.blog/posts/38 Happy 3rd Sunday of Advent to all who celebrate! [3rdSundayOfAdvent.jpg] Back on 2023-12-03 I wro... Mon, 18 Dec 2023 00:15:19 +0000 https://tlehman.blog/posts/36 https://tlehman.blog/posts/36 I am going down the Grothendieck rabbit hole. Reading Olivia Caramello's Introduction to Grothend... Sun, 17 Dec 2023 06:33:47 +0000 https://tlehman.blog/posts/35 https://tlehman.blog/posts/35 What do algebra, Rubik's cubes and quantum theory have in common? Start with the Rubik's cube. It... Fri, 15 Dec 2023 06:34:29 +0000 https://tlehman.blog/posts/34 https://tlehman.blog/posts/34 • I've been busy on a bug at work, not much time for blogging. • On the #aliens topic, David Grus... Wed, 13 Dec 2023 22:51:45 +0000 https://tlehman.blog/posts/33 https://tlehman.blog/posts/33 I am in the process of adding commenting to this blog.  Starting October 2nd, 2023, after watchi... Mon, 11 Dec 2023 00:38:34 +0000 https://tlehman.blog/posts/32 https://tlehman.blog/posts/32 Jeffrey Snover is the inventor of PowerShell, a command line interface for Windows. What made Pow... Fri, 08 Dec 2023 21:27:58 +0000 https://tlehman.blog/posts/31 https://tlehman.blog/posts/31 Prompted by this tweet, I realized I've been thinking about forms of collectivism and individuali... Wed, 06 Dec 2023 19:24:57 +0000 https://tlehman.blog/posts/30 https://tlehman.blog/posts/30 • Two days LiturgyGeek deep dive: a personal Advent of Code I said I was going to try compiling i... Wed, 06 Dec 2023 00:31:16 +0000 https://tlehman.blog/posts/29 https://tlehman.blog/posts/29 Today is the first day of Advent, but the third day of Advent of Code (AoC). I'm not doing AoC th... Mon, 04 Dec 2023 00:55:35 +0000 https://tlehman.blog/posts/28 https://tlehman.blog/posts/28 In my earlier post Do sets exist?, I introduced two ideas about this, personified by Plato and Ar... Fri, 01 Dec 2023 14:18:57 +0000 https://tlehman.blog/posts/27 https://tlehman.blog/posts/27 Puppet is a programming language that was designed to automate the administration of infrastructu... Thu, 30 Nov 2023 23:14:44 +0000 https://tlehman.blog/posts/26 https://tlehman.blog/posts/26 There are a few things going on with the UFO story that dates back to at least 2017. The story h... Wed, 29 Nov 2023 02:19:23 +0000 https://tlehman.blog/posts/25 https://tlehman.blog/posts/25 You walk into a room full of confused college students, each wearing shirts bearing formulae they... Sat, 25 Nov 2023 17:10:14 +0000 https://tlehman.blog/posts/24 https://tlehman.blog/posts/24 This thanksgiving follows a hard year for me personally, but I wanted to take the time to express... Fri, 24 Nov 2023 01:34:18 +0000 https://tlehman.blog/posts/23 https://tlehman.blog/posts/23 Yesterday I introduced Transfinite numbers, and today is going to be surreal. The real numbers ℝ ... Wed, 22 Nov 2023 22:56:32 +0000 https://tlehman.blog/posts/22 https://tlehman.blog/posts/22 In my 2023-11-18 post, Cantor's Paradise: From Empty to Infinity and Beyond, I introduced the ide... Wed, 22 Nov 2023 06:24:52 +0000 https://tlehman.blog/posts/21 https://tlehman.blog/posts/21 Donald Hoffman is the psychologist who worked with physicist Nima Arkani-Hamed. One of Hoffman's ... Tue, 21 Nov 2023 01:16:10 +0000 https://tlehman.blog/posts/20 https://tlehman.blog/posts/20 In my post yesterday, Cantor's Paradise: From Empty to Infinity and Beyond, I talked about how we... Mon, 20 Nov 2023 00:03:11 +0000 https://tlehman.blog/posts/19 https://tlehman.blog/posts/19 In the 19th century, mathematicians sought to re-found all the ancient disciplines of mathematics... Sun, 19 Nov 2023 04:37:07 +0000 https://tlehman.blog/posts/18 https://tlehman.blog/posts/18 Hacker News brought this to my attention: the command  date +%s Returns 1700021943, now more than... Wed, 15 Nov 2023 04:31:57 +0000 https://tlehman.blog/posts/17 https://tlehman.blog/posts/17 In half an hour I will celebrate the Rite of Admission to the Catechumenate at my church. I've ex... Sun, 12 Nov 2023 17:24:16 +0000 https://tlehman.blog/posts/16 https://tlehman.blog/posts/16 Over on X/Twitter I posted this, promising to personally bring back blogging. Well I meant it. I'... Sat, 11 Nov 2023 07:12:42 +0000 https://tlehman.blog/posts/15 https://tlehman.blog/posts/15