There's nothing strange about that. Read further and "Records of a Regularly Conducted Activity" is also excepted, and so is absense of records. It's almost li

There's nothing strange about that. Read further and "Records of a Regularly Conducted Activity" is also excepted, and so is absense of records. It's almost like a timestamp tool. "One year ago I suffered from XYZ" has little value. But a piece of paper, written by a doctor, that confirms one year ago you said you suffered from XYZ, is worth more. Doesn't mean XYZ is true, but it means you said that one year in advance.