I also do not believe in any set path through existence or fate, and to my understanding that is not what quantum physics is all about. I see part of it as just a means of categorising vast amounts of information so that it can be easily referenced.
For example a point within the 10th dimension with all its possible branches for all the possible time lines of all the possible universes is not a pre set path. It is basically a way of simplifying a vast amount of infinite possibilities. These infinite possibilities are exactly that, infinite it’s hard to see it as a pre determined set of circumstances when there are an infinite number of possibilities.
In regards to consciousness -
I’m not really in agreement with what you are saying in relation to our consciousness being something more then just another type of computer. The way I see it is that our consciousness is just a complex emulation created by the vast network of neurons in our brain. This consciousness forms our reality by assigning truths to perceived situations based upon our interaction with others within our reality. Basically we learn to judge things based upon the perceived truths that one receives from others.
An example of this would be someone within your reality telling you that a basketball bounces off the ground because there is a magical string that is pulling it upward. To our understanding this is not the reason why a basketball bounces of the ground but if you accept this as your truth and choice to view your reality from that perspective then you have altered your reality through interacting with others. Humans could not function with out this ability.
If we remove all forms of stimulus (sight, sound, touch ect ect) from our reality we would be left with a world of near perfect freedom within our own mind. This world is completely of yourself, the only thing forming and existing within this reality is your consciousness. But even in this world of near perfect freedom where you would have the potential to do anything you what by simply thinking it you would not be able to function.
With no interaction with others we would not be able to recognize our own individuality or assign a truth to our current situation, and seeing as this near perfect freedom reality is empty, void and only of you then there would be no difference between yourself and nothing.
Your truth can be changed simply by the way you accept it.
Quote: "To say that a system must be complicated enough to aquire consiousness is absurd"
The common hypothesis that a complicated system is required to form a consciousness is a logical assumption based on the study of humans and animals within the natural world. I admit it is just a guess but it dose sound like the most reasonable probability.