Random By Agreement

We walk along, each in our own realm. We each flip a coin constantly, each step along an unseen- but well established- path. The path is the digits of pi, the coin flips heads when it's even, and tails when it's odd. Others can ask us for a flip, or a series of flips (condensed), and the answer provided is always correct. 

We know that our flip is not random, but we also don't feel like crunching the numbers while we walk, so it bears the persistent appearance of random. They do not know how many times we have flipped the coin, and therefore have no way of predicting the next flip; in this way the appearance of random becomes random when observed externally. Others might suspect, but it seems that most do not, and so random persists from each external perspective, as long as we persist in the flipping, a process as automatic as breathing, perhaps even more so.

For those that do suspect, and may try to uncover what lies beneath, there is a card up our sleeves: no one knows when we began this process, or where along the path of pi we joined. It might have been at 3.14, it might be at the millionth digit, it might be at the G64 digit, or anywhere else in Pi's infinite sea. All that is known is that we did dive in, at one point, and all others along this path have done the same. Unraveling random would then be perhaps an impossible feat- removing a coin flip removes the one flipping it. How would one know if they had succeeded? One's only reward would be a static and rapidly crystallizing existence. Crystallization would be fast; mercy would be that it is too fast to register.