It is completely linear. The reason why you don't know what a die will land on when you throw it is because you do not know all the variables involved but all those variables are based on what went before. As soon as time began everything was fated to become what it has. It was fated because the laws we live by give rise to planets spinning round stars etc etc etc etc.
If any of these laws did not work the way they have and do, we would not be here talking about it. There is 1 theory that there are billions of universes and that this one had the correct laws to give rise to life... but I think that is a bit desperate and weak, and a way to explain away everything we do not understand.
You can never predict the future because you do not have sufficient data of the present or the past. But if you did know all the variables including a full understanding of the quantum level, it is logical to assume that you could predict the future totally. Unfortunately our own observations interfere with the randomness of the unverse (Quamtum physics again), and so from our perspective the world will always have a degree of randomness. It would also take massive calculations regardless. But the point is a simple one... random is only random because you do not know the variables and what went before to a full understanding; the future, including our fate can not be known but the laws we live by are directing us there day after day.
All the decisions you make in life are based on the current variables and the past. You think you have free will, but do you? The answer is no.. you don't. At the fundamental point, you and me and everyone are slaves to what went before and ultimately to the laws we live by, that were created without any control from us. The very start of the universe and time started us down a path of causality.
We are the snow ball rolling down a hill.
It is not all bad though! Because we don't know enough, we can never know enough to make this world predictable and boring. The above is true if Time is in 1 direction and if the universe conforms to the strict mathematics it seems to. Of course... I don't know of it does, but I'd say it is the best bet