writing

Notes on typing, keyboards, and the craft of getting fast. We try to write what we wish we'd read when we started — practical, specific, and honest about what does and doesn't matter.

Why accuracy beats speed: the math of net WPM
Every uncorrected mistake costs more time than the speed you "gained" by going faster. Here's the arithmetic, and why the 98% rule isn't optional once you cross 70 WPM.
How keyboard switches actually affect your typing speed
The honest answer to "should I buy a mechanical keyboard to type faster?" — what changes, what doesn't, and why most of the difference shows up after the first 30 minutes of typing, not in your peak WPM.
QWERTY vs Dvorak vs Colemak: should you switch?
A clear-eyed look at the alternative layouts. The case for, the case against, and the question that decides it for almost everyone.
Why I built tempo
The short version: every existing typing site got at least one thing wrong, and the gap kept bothering me. The long version is below.