I understood your question, but the way that you look at prophecy is not the same way that I do. When you characterized the accuracy of prophecy, you did so like this:
The implication of this is that biblical prophecies (almost) never come true. If this is not what you were saying (above) then please clarify. I responded by saying that the prophecies of Daniel are well documented. The predictions made by Daniel looked far into the future, beyond his own life, but they have been seen to be incredibly accurate. Some events have yet to come true, but this is not because they are false, it is because the full narrative has not yet unfolded. Here is a chart that explains Daniel’s 70-week prophecy from chapter nine:
So, your question, while sincere is not phrased in a way that most of us would be able to answer. It is somewhat like “How loud is orange?”
Keep in mind that Hebrew prophets, if found to be false prophets, were stoned to death. So giving prophecy from God was not to be taken lightly.