### 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

### What is a Tensor?

# TL;DR

### 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 \(|r| < 1\).

### Zombies

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.