idiom
black box
Un sistema o proceso cuyos mecanismos no se entienden o no son transparentes
Meaning
a system or process whose workings are not understood or transparent
Example
The neural network is often described as a **black box** because its decision-making process is not fully transparent.
La red neuronal a menudo se describe como una **caja negra** porque su proceso de toma de decisiones no es completamente transparente.