1) chance is merely path dependency
1.1) chance happens like white noise
1.2) things cannot go anywhere, only where it can go. some rules are original (physics).
2) the greatest adaptive trait in evolution is being able to process change, this is the single most important trait (the final cause) being selected for at all times – finality is camouflaged. (optimize for intelligence)
2.1) thus evolution is not only “pure contingency” of “blind causal processes” – it’s a strategic game always selecting for generality and flexibility (“complex organized functionality” or “something that can last a hell of a fucking long time”)
3) the organism, to the extent that it also changes the environment, can be said to self-produce the changes that the environment produces on it. adaptation runs in a cycle, a feedback loop, moves and counter moves
3.1) yeah, changes come from white-noise-like mutation: “let’s try it all and see what survives”.