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And hence there's really no logic in saying that probability is the reason why evolution cannot be true. Something being improbable doesn't mean it is impossible, only that it is very unlikely that it will happen.
One thing I've not heard speculated on is, even though life already exists on earth, does it in fact still start from "dead matter" in places from time to time? Why should any process that got it going in the first place be exinct? I know it would be difficult to be in the right place at the right time to witness it.
Decent analogy, but in my honest opinion, we must also remember that randomness, chances, and probabilities don't truly exist as actualities.
Actually, they do. The randomness evolution depends on is randomness present in mutations, which relies on quantum-mechanical chemical processes - true, quantum randomness, guaranteed to be genuinely random (probabilistic) by physical laws (even if all known conditions are the same, you still get different results).
Our universe is fundamentally probabilistic (stochastic), not deterministic.
Originally posted by Maslo
Actually, they do. The randomness evolution depends on is randomness present in mutations, which relies on quantum-mechanical chemical processes - true, quantum randomness, guaranteed to be genuinely random (probabilistic) by physical laws (even if all known conditions are the same, you still get different results).
Our universe is fundamentally probabilistic (stochastic), not deterministic.
I personally don't believe that to be the case, for if it were the case, then we must throw out causality in my opinion.
Randomness in Evolution is no where near random or by chance. A mutation occurs for various reasons, it has various causes to it's effect. Life doesn't randomly pop up and randomly evolve on random planet around random stars. There are a lot of conditions that *must* occur before any life can develop and evolve into new species once it's established. It has nothing to do with probabilities or randomness. Life simply won't develop on an inhospitable planet by random chance or by probabilistic occurrence. Conditions must be met before any event occurs.
Maybe the universe on the micro scale works that way, even if it seems very strange to its inhabitants, only because they are evolutionary adapted to macroscopic, clasiccal, non-quantum world. What if causality is only emergent, statistical property, which emerges from probabilities in the micro scale? (something like thermodynamics).
Or there really are hidden variables which determine the exact outcome of quantum probability event, but to beings in our universe its indistinguishable from true randomness, since we cannot determine them in any way - therefore they are irelevant.
Of course, I was talking only about quantum randomness. In the macro world, everything is conditional (almost, sometimes true quantum-random event can directly influence even macro world - stochastic quantum radioactive decay can for example radiate photon exactly in time and place to cause dangerous point-mutation, which leads to cancer). But development of life requires many macro-world conditions, so its not so easy to influence by one quantum event.
Reality is not a place of what-ifs. It's a place of actions, causes and effects.
Ah, so an inability to accurately predict when an atom will decay is now being likened to a true random event?
For what reason would the mutation of life be caused by random radiation and yet the causation of life be cause only by conditional occurrences? Why have one determined by random influence and not the other?
Are all extant variables known in order to call it a true random event?