Cant argue with anything you say~
What I can say is that cause an affect are real. I could come up with just as many examples of things like "If I throw this rock in the air is it going to come down? Did it come down because thats the way it works or because of a factor unawares?"
So to me randomness is obvious, there is obviously things that happen randomly and cannot really be predicted yet there is also lots that can be predicted like the migration of birds.
Yet even in what can be predicted there is still variance.
What to me is most influential is the level of awareness.
If someone who has no real awareness of what they eat or of health starts taking a pill then its possible the pill is actually healthy or its possible that just the decision to be healthier is influencing them to be healthier. Yet both of these things could be true.
This is what is potentially so great about science is that you experiment with something and see if you can duplicate results.
Yet at the same time even "reproducible science" has variance.
So really there is no absolute answer for anything except for maybe that change is constant or chaos is a part of it.
What I have found is that the more conscious I am, the more I experiment, the more I pay attention the more successful I get at whatever it is I do. I don't take peoples word as truth, I consider it, I research it I experiment with it. Then if I find it to be true even then I don't say "THIS IS THE WAY IT IS!" I say "This is my experience and what works for me"
Thanks for the thought provoking post, any time people consciously ponder evolution is taking place at some level and this is beneficial~*~