Yeah, R2D2 is the epitome of this. He(?)'s apparently fully sentient and can comprehend a bunch of languages but only communicates in beeps and whistles. The on

Yeah, R2D2 is the epitome of this. He(?)'s apparently fully sentient and can comprehend a bunch of languages but only communicates in beeps and whistles. The only way it makes sense is if he's not actually incapable of speech, he's just an eccentric who refuses to use "human speak."