Meaning of rule of cool | Babel Free

Definitions

The principle that anything is acceptable to do, use, wear, etc. just as long as it is cool.

Examples

“They found Xinyi Du at the apex of the DUAL Core, a massive quantum computer which plunged away below them where a series of catwalks and maintenance accesses buzzed with drones and shone with dozens of blinking indicators. It was spinning; Wettle had never understood what practical reason a computer might have to spin, but perhaps it wasn't practical at all. Most of the Foundation's best scientists succumbed to some extent to the siren song of the rule of cool.”

CEFR level