Comment by Retric
2 days ago
Random bad luck is always part of any survival of the fittest situation. A meteor killing few thousand trees isn’t something a given tree at the center of the impact crater can do much about.
Also, it’s “fittest” as category not most fit as a ranking. Perhaps a better conceptual model is people who finish a marathon are a fitter group than those who start a marathon even if someone who failed was potentially in better shape than the winner. Many species have thousands of offspring because the odds any one of them reproduces is very low, a valid strategy not some sign of incompetence.
> Add luck doesn't explain millions either, it would sound the same if thousands dropped to hundreds
The actual cause is the full evolutionary history going back to the first life form and the environment each generation lived in, but we can still examine individual elements of what’s going on.
“Luck” is a multiplier on the number of sperm needed. The ability of an individual sperm to optimize its odds of success is a sign of cellular function. There’s zero contradiction between those statements. ~1:10,000 * ~1:100
So the fittest tree dying due to a meteor is *not* survival of the fittest. It's survival of the luckiest. This has nothing about being "fit"/better adapted to the environment.
> Many species have thousands of offspring because the odds any one of them reproduces is very low, a valid strategy not some sign of incompetence.
But having millions instead of thousands that would decrease the chances of survival (for example, by the offspring exhausting food resources and starving) would be a sign of incompetence.
Anyway, this is a different, simpler, argument, it explains "many with low chances", but doesn't explain 50 millions wether thousands would work just fine.
> There’s zero contradiction between those statements
My issue is there is zero connection. You can't justify millions this way.
> The actual cause is the full evolutionary history
That's not a cause, but a description of what happened. There's a lot of irrelevant info in that history. Also a lots of random things with no benefit
> So the fittest tree dying due to a meteor is not survival of the fittest. It's survival of the luckiest. This has nothing about being "fit"/better adapted to the environment.
Again fittest is a classification. In Darwinian terms, the phrase is best understood as "survival of the form that in successive generations will leave most copies of itself."
After several generations it could be shown that a tree did have the form of the fittest without itself surviving.
> But having millions instead of thousands that would decrease the chances of survival (for example, by the offspring exhausting food resources and starving) would be a sign of incompetence.
Offspring of many species consume their siblings, millions is generally inefficient for other reasons. Some trees could have millions of viable offspring in their lifetime but random dispersal is really inefficient.
> My issue is there is zero connection. You can't justify millions this way.
I already did.
Odds multiply here, you want competition and also have to contend with random dispersal. 1 in 10,000 * 1 in 100 is 1 in 1 million. It’s very easy to look at the combination of multiple factors and see why millions is an efficient use of resources for animals as large as humans. Trying to argue for a single justification doesn’t work because multiple factors such as our size is involved.
> That's not a cause, but a description of what happened. There's a lot of irrelevant info in that history. Also a lots of random things with no benefit
Randomness is part of evolution. There’s ultimately no particular reason we got the particular version of various mirrored molecules that we did, but once that selection happened it was unlikely to change.
The actual process isn’t just the high level overview we talk about but the actual interplay down to individual subatomic particles. Multiple paths could have resulted in an organism with your specific DNA sequence but only one path actually did result in you existing and having your specific layout of carbon 14 nuclei etc. So argue all you want that an equivalent organism could exist, just realize you’re arbitrarily lowering the threshold between the actual process and a simplified abstraction.
You're basically removing all "fit" from the term, and that's not how Darwin described it, a couple of quotes per wiki:
> "This preservation of favourable variations, and the destruction of injurious variations, I call Natural Selection, or the Survival of the Fittest." – Darwin, Charles gqiyoh
> This preservation, during the battle for life, of varieties which possess any advantage in structure, constitution, or instinct, I have called Natural Selection
Dumb meteor luck doesn't care about preserving favorable, doesn't care about any advantage in structure, so there is no fit going on even if you constrain it to a binary classification
So coming back to your first comment, your understanding of "fit" doesn't help *at all* in "drastically cut[ting] down on the issues". You don't cut anything bad if you don't filter out bad/fit for good, but instead have dumb luck making dumb choices.
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