are humans nothing more than functions??

Dear friends,
Think for a moment that all you are is a function in this space time continnum, that is you can be fully described by a mathematical function and you behave like one with completely determinable trajectory. Although it is a eerie feeling but may be it is true. Now you can look at death as a possible change point of the function. Now to connect it with existing thoughts in philosophy imagine the idea mooted by hinduism about re-incarnation so is this re-incarnation a change point of this function? Taking this a step further what is Nirvana, according to existing beliefs it is escape from the cycle of life and death, or is it mathematically nothing but a discontinuity wherein the function stops abruptly. Add to this bit of multiple dimensions and we can possibly argue that as we move in space time we can be present anywhere in this multiverse. So is it that once we die we are re-incarnated in another dimension (assuming probability is the same for all dimensions it is simply 1/n of being in the same dimension). Possible the reason why it is thought in traditional philosophy that it is very difficult to be born a human is that the value of n is decently large.
Do let me know more about any such metaphor if you read this.