Commitment Contracts

Hernan Cortes would’ve made a good behavioral economist if he hadn’t decided to be a conquistador.

Use Magit

If you’re using Emacs, then I’m sure you’ve heard of Magit. Go read something else, like Helen DeWitt’s The Last Samurai.

Fun with Vim's Filter Operator

One of Vim’s lesser-known operators is !. If y, d, and v are the jocks, then c, <,and > are the theater kids, and ! is the kid who has to eat with the teachers because no one likes them.

Simple vs. Easy

There is rarely a distinction made between the following 2 terms, but I think it’s useful to separate the concepts of simple and easy.

Really bad advice

This is the Hacker News post where Drew Houston presented Dropbox for the first time.

DEDRM tutorial

What this is

Why Saudi Arabia's Future Doesn't Look Good


Why do Neural Networks Have Bias Nodes?

See this great Stack Overflow answer.

What is a Tensor?


Work Ethic Quote

I don’t really buy into the idea of the Protestant Work Ethic (nobody works harder than Japanese salarymen, and they’re pretty far removed from any Calvinist cultural heritage)

– J. D. Moyer

Happy Birthday, calibre

calibre turned 10 years old 5 days ago.

$$(I-A)^{-1}$$ trick

The geometric series \(\sum_{k=0}^{\infty}{ar^k}\) equals \(\frac{a}{1-r}\) if and only if \(|r| < 1\).


I find zombies interesting on an intellectual level. The slow, mindless one that have to bite you. (Read The Zombie Survival Guide for more info.)

My (Odd) Reason for Liking the Solarized Dark Background

I think of math the same way I think of this shade of blue:

GoodNotes Templates

These are Blank and Cornell templates, in both Landscape and Portrait. They’re meant for any Retina iPad, including both iPad Pro sizes.

Easy Way To Remember Some Grammar (If You Have Some Math Background)

It’s annoying to remember the grammar rule for quantities that dictates when to use many vs. much, fewer vs. less, etc.