YOU SAID:
you are to die within the next 2 million decades.
INTO JAPANESE
あなたは次の200万年以内に死ぬことになっています。
BACK INTO ENGLISH
You are to die within the next two million years.
INTO JAPANESE
あなたは今後200万年以内に死ぬことになっています。
BACK INTO ENGLISH
You are to die within the next two million years.
That didn't even make that much sense in English.