On: Nanofont3x4: Smallest readable 3x4 font with lower...

[berkes]

Screen resolution is literally the amount of pixels that fit on a square inch.

[remram → berkes]

Not that's density, measured in dpi (dots per inch).

You wouldn't say that Super Mario is unplayable because it's too tiny at 256x224. You would just have you 4k TV show big pixels and get on with the game.