You talk about contradiction. I have a few more for you here. The example of "future" was given and you stated that the future is "unknown" but not "unknowable". And fundamental reality clearly is "unknowable". I disputed that by saying that the future is not a fixed point in time, but a concept for everything after the present moment, which is a moving point on the time axis. Thus, the future is as unknowable as fundamental reality.
I thought about it a bit more, and realized that "fundamental reality" and "future", in fact, are exactly the same thing! Talking about contradiction, "fundamental reality" is in the space/state dimension, and "future" in the time dimension. And I claim they are the same thing! Now we can have a discussion...
The contradiction is not unexpected. It is the point that our conceptual thinking is not capable of capturing the truth. It is the point where we have to say: thoughts no longer apply here. It is like the symbol of infinity in (highschool) Mathematics, it is not allowed to enter this in a formula, it wil lead to contradictions. If you want to see an example, I can show you. [edit, I just read you are a math tutor so this isn't needed. Also, division by zero is a better example, and I started a little discussion in the Lounge]
So, "fundamental reality" and "future" are exactly the same thing? For example, a spaceship lands in your backyard. Before it happened, it was both "in the future" and in "fundamental reality". Two abstract terms that only mean that we can expect a stream of surprises from that corner.
After the spaceship has landed, we can try to understand it. Aha, it was a toy rocket from our neigbor. Or, indeed, they were aliens coming to say hello. It becomes conceptual reality as well as history.
This is how fundamental reality / future gets to us, as a series of surprises, discoveries, inventions, accidents etc. The current moment is like a border between that and the conceptual reality / history. Even when we see something but don't know what it is, the moment we actually DO realize what it is, is when this piece of knowledge crosses the border.
I hope you can find something to relate to this explanation! I know, it is not a standard view, and you don't have to agree. But it is my personal view and I like to hear your response.