Maybe some other members have said what I will say now, but I don’t have the time to read what every one has posted so far, so I’ll just write my answer as if it were the first answer here.
The Future hasn’t begun from our perspective. I’ll try to make it easier for you to understand what I mean, by means of this example:
Imagine you can walk inside a movie that you have watched several times. Also imagine that you’re walking into the real time and space that they are playing in, which means you’re entering a time and space that is not just the movie that you know, but their real life, of which the movie only shows some specific details. Further on, imagine you can interact with the characters of the movie ‘behind the stage’, so you never appear in the movie itself.
You enter it at the very beginning.
You know what will happen there, isn’t that right?
But do the people ‘inside the movie’ know it?
No, they don’t. All the coming actions are FUTURE to them, and that’s why they don’t know anything about them. But you do, because you’ve seen the movie several times.
So, for the characters in the movie, the Future isn’t seen yet. From their point of view, the Time is flowing forward and future events are yet to come. But from your point of view, the future concerning that movie has already happened.
What if our whole Universe is somebody’s movie that they have created and seen already?