I'd like to start this discussion with saying that I don't believe in free will, but I don't think everything is predestined either. I just believe that there is a kind of randomness in the whole universe (like some of quantum mechanics says) so you can never calculate what will happen. Here comes the problem with not having free will, if we don't then surely we have no consciousness either?

I'm not even sure what consciousness really means. Here's a quote from wikipedia:

"Consciousness is variously defined as subjective experience or awareness, or wakefulness, or the executive control system of the mind. It is an umbrella term that may refer to a variety of mental phenomena. Although humans realize what everyday experiences are, consciousness refuses to be defined"

They talk about awareness or wakefulness, which doesn't make any sense if we don't have free will and are just manifestations of randomness and chance. What would be the thing that is aware or awake?

The whole thing about "experience" doesn't make sense either. What is experiencing, is it the molecules in you body, you'r nervous system reacting to chemical reactions (which are still just molecules in your body) or what?

The executive control system of the mind makes the most sense to me as it accepts that there is nothing more than a center (molecules) which "control" things around the body to make it survive in a world of randomness. This system has then become better by evolution so it chooses the most rational option, the option that left most of it's ancestors alive.

So, I've come to the conclusion that there is no consciousness and we are just machines, formed by random chance and evolution, which react to the random surroundings in the way that left most of our ancestor's alive

Prove me wrong!