These are just a collection of sites, resources, articles, etc. that I've found to be interesting or want to come back to later. (by no means an endorsement)
math
category theory

 Types vs Sets (and even Categories)
 Aug 31, 2023

 An invariant from category theory solves a problem in mathematical ecology
 July 27, 2023

 Toward a useful category for persistent homology (Topos Colloquium)
 Link to notes
 May 11, 2023

 Chain complexes of sets: homology made simple
 Link to notes
 May 9, 2023

 Spacetime tradeoffs of lenses and optics via higher category theory
 Saw talk at Topos in late 2022. Workshop with David?
 October 3, 2022

 Sheaves in Geometry and Logic (Saunders Mac Lane)
 Read during the summer part way
 July ??, 2022

 Topology: A Categorical Approach (TaiDanae Bradley)
 Started early summer '22. I have a pdf version of each section merged
 June ??, 2022

 Physics, Topology, Logic and Computation: A Rosetta Stone (John Baez)
 John Baez my beloved <3
 Recommended by Ted
 ?? ??, 2022
graph theory
probability/statistics

 Measure and Probability
 December 19, 2023

 Problem 14
 August 5, 2023

 On a Random Entanglement Problem (G. Bonner, JL Thiffeault, B. Valko)
 May 9, 2023

 Introduction to Probability (D. Anderson, T. Seppalainen, B. Valko)
 May 9, 2023

 Robot Long Jump (Jane Street)
 Uniform distribution characteristic distribution > fourier transform
 See also: Bandit Problem, Renewal Theory, Stopping Time Problem
 May 9, 2023

 Algorithmic Trading: A Practitioner's Guide
 Builds on Econometrics ideas
 May 9, 2023
other/uncategorized

 Introduction to Representation Theory
 March 28, 2023

 Algebraic Foundations for Applied Topology and Data Analysis
 March 22, 2023

 Introduction to Algebraic Coding Theory
 March 22, 2023

 Data Gaguing, Covariance, and Equivariance
 December 20, 2023

 The Fourier Transform (Terry Tao)
 December 14, 2023

 Wavelets
 December 14, 2023

 wu : riddles
 August 5, 2023

 Braids and Dynamics (JeanLuc Thiffeault)
 Read up to Ch4.3 I think
 April ??, 2023

 An Infinitely Large Napkin (Evan Chen)
 ?? ??, 2022
cs
language
ml
security
other
physics

 [Structures and Interpretations of Classical Mechanics)[https://mitpress.mit.edu/9780262028967/structureandinterpretationofclassicalmechanics/]
 March 25, 2023

 Gague fields, Knots, and Gravity (John Baez)
 Rec'd by Prof. Dr Show on r/okbuddyphd discord
 December 20, 2023

 Classical Electrodynamics (John David Jackson)
 May 13, 2023
other

 The Baltic Origins of Homer's Epic Tales
 ?? ??, 2023

 Why I hired an oncologist as my private consultant when I had cancer
 December 7, 2023

 Jordan Mozer
 November 16, 2023

 Interview with Viktor Pelevin
 November 4, 2023

 A Master Perfumer's Reflections on Patchouli and Vetiver
 September 27, 2023

 The Waste Stream of Consumer Finance
 September 13, 2023

 Scan of the Month
 Aug 31, 2023

 SFPOPOS
 Aug 31, 2023

 6D Model of National Culture
 Aug 5, 2023

 The Language of Food
 A houjun rec!
 Aug 1, 2023

 US Army Field Manual on Leadership
 July 29, 2023

 Cities without Ground
 July 29, 2023

 LAN Party
 July 27, 2023

 Doom Guy (John Romero)
 July 27, 2023