YOU SAID:
you're the stupidest person I've ever met
INTO JAPANESE
あなたは私が今まで会った中で最も愚かな人です
BACK INTO ENGLISH
You are the most stupid person i have ever met
INTO JAPANESE
あなたは私が今まで会った中で最も愚かな人です
BACK INTO ENGLISH
You are the most stupid person i have ever met
That didn't even make that much sense in English.