is more than
“Because it looks cool.”

Line length between 45-72 characters [try this handy tool]
Enough line spacing in between so that y doesn't touch T
Can you tell the difference between each letter?

For white text on black, make sure you increase the leading,
tracking and decrease your font-weight.
Leading ("line-height: ;" ) should be inversely proportional
to your text column width.
Small column, less leading. Big column, more leading.



Further reading:




but it has tons of font families with multiple weights.