Prior to your quote, I reviewed the other component of the argument's antecedent, which you omitted:
Quoting that post:
I may have this wrong, but it seems that now you've presented another logical fallacy: denial of the antecedent. If A then B. Not A, therefore not B. That argument is logically unsound. It seems in your response that you've stated: If evolution were sentient and had a goal (A), then irreducibly complex systems could be made through it (B).
sandy_mcd wrote:ncooty wrote: Evolution is not sentient and does not have a goal (not A), therefore, irreducibly complex systems cannot be made via evolution (not B).
This is not a logical fallacy but there are assumptions involved:
1) It is highly unlikely that all the essential parts will independently develop and then fall into place as a functioning object of irreducible complexity.
2) That any precursors to an object of irreducible complexity with some function would not have any value.
I'm sorry, but I cannot see how the argument I quoted does not fit the template of denial of the antecedent, which is a logically unsound form of argument, also called a logical fallacy. I wrote it out as plainly as I could, so please explain how the argument is different from: If A, then B. Not A, therefore not B. (If you are unfamiliar with formal logic, there are any number of references available online. I don't mean that pedantically or patronizingly.)
As for the assumptions, the first assumption makes the fallacy
worse. Now you're saying that an intelligent designer isn't necessary for irreducible complexity, just that you think without one, irreducible complexity has a
low probability. The thing is, there are unquantifiable numbers of genotypic mutations that have not persisted or resulted in phenotypic manifestations. The probability doesn't need to be large at all. It's unlikely that any one person will win the lottery. Just because someone wins doesn't mean that a supernatural power made a large deposit to that person's bank account. We don't need a supernatural explanation for something that has a
low probability.
I think the second assumption was addressed in an earlier post of mine:
Quoting my earlier post:
It seems to me that your point makes two distinct assumptions:
1) individual mutations couldn't be worthwhile in and of themselves
and
2) organisms with mutations can't procreate.
If assumption 1 were true, no single mutation would be viable. I'll give you one genetic mutation that is viable in and of itself: the recessive sickle-cell trait. It's presence drastically reduces the likelihood of malaria infection. I think any single-chromosome genetic mutation should suffice to disprove assumption 1, given that a tRNA or RNAi discrepancy from the DNA would result in a phenotypic anomoly of the offspring.
If assumption 2 were true, none of us would be here. In fact, the mere fact that cancer spreads is likely sufficient to disprove assumption #2.
End quote.
Moreover, you are skipping a lot of important questions.
I'm willing to get on board with the ID stuff, but I just don't understand the logic or reasoning yet.
Again:
What kind of evidence would it take to change the mind of someone who believes in intelligent design?
How complex is too complex for evolution to explain? Is there anything that is not too complex for evolution to explain?