YOU SAID:
controlled by PAMA - a sinister "thinking machine" determined to command everyone and everything in pursuit of optimal usefulness and efficiency.
INTO JAPANESE
PAMA - 不吉なことによって最適な有用性と効率性を追求した皆およびすべてを指揮する「思考機械」が決定されます。
BACK INTO ENGLISH
PAMA - everyone seeking optimal usability and efficiency by a sinister and directs all "thinking machine" is determined.
That didn't even make that much sense in English.