### Appreciating the Randomness in the World, According to Bradley Efron

Better known as the inventor of the bootstrap.

### Teaching vs. Coaching

A teacher makes implicit knowledge explicit. Specifically, they make knowledge implicit in the teacher explicit.

### Disambiguating the Equals Sign

Depending on context, $x = y$ can mean any of:

## Stupidity

### Vim :Options

Check out :options, especially if you’re new to configuring Vim (and want to).

### Vimscript Comparisons Suck

Vim has a built-in scripting language. It’s what you write your vimrc in, and it’s really convenient for short one-off tasks.

### Stupid Simple Algorithms: DAgger

My hatred of the fetish for acronyms in academia reminds me of Amberley Vail’s rants against Imperial Guard jargon in the Ciaphas Cain novels.

### Learn Some Shell Script: For-loops

A lot of people I know seem to glory in their ignorance of the terminal. Which would be fine if they didn’t use it every day. Yes, bash is ugly. On the other hand, like many ugly things, it can be used as a brute tool to do a lot of mundane tasks.

### Why Live?

There was a footpath leading across fields to New Southgate, and I used to go there alone to watch the sunset and contemplate suicide. I did not, however, commit suicide, because I wished to know more of mathematics.

## Why The Second Derivative Test Works In One Dimension

### How To Make Alt Key Not Type Unicode On Macos

I actually prefer the term macOS to OSX.

## Prerequisites (In Order Of Importance)

### How to Get Rid of the Tildes in Vim 8 and Neovim

If your buffer has empty lines, they are filled with annoying tildes. Vim 8 and Neovim finally fix this by allowing you to conceal them with the following command:

### Mnenomic for Law of Total Variance

I have (what I find) a handy mnemonic for the law of total variance. It’s also sometimes called the conditional variance formula, or (the reason for this mnenomic) Eve’s law. At least if I’m quoting Wikipedia right.