教授和学生关于一块化石的对话。问及化石年龄时,教授回答The earliest brachiopods were from the Paleozoic era, 300 to 500 million years ago. 。。。It’s not out of the question that your fossil could be that old.
这里it's not out of the question在句子里面的意识是:完全有可能,你的化石可能就是300 to 500 million years old的对么?
哪位总结一下out of the question, out of question,以及前面加上否定词的意思?