Reconciling Humani Generis with the human genetic data showing that there never were just two first parents

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Freddy:
Dolphins are quite intelligent but have a life span of about forty years. Octopii are known to have a degree of intelligence and their life span is only around two years. I wonder what we’d end up with if we selectively bred them for intelligence?

There was a sci fi book I read many years ago called Manifold: Time by Stephen Baxter which had as part of the plot line intelligent gene-manipulated space faring squid. Put me off calamari for a while…
I think some whales have been aged to be over 200 years old. Hopefully we won’t hear them singing “good bye and thanks for all the fish.” lol
I think it might have been Spike Milligan who said that he had an aversion to eating anything that might be smarter than he was.
 
That position is absurd, for it holds that effects can surpass their causes (i.e. that a natural cause can produce a supernatural effect). For a human to be born of two beasts would be a miracle surpassing the Incarnation, for though Christ was conceived without the (name removed by moderator)ut of a male, still He is True Man from True Woman. Indeed, this very doctrine of the True Humanity of Christ is why we must not confuse the Divine Word with the Anima Christi, for Christ would not be fully human if He did not have a human soul.
 
I agree that science has been misinterpreted to a differente world view.

However, these theories have much evidence and are currently the most correct descriptors of the natural world. They are closer to the truth than natural aristotelism.

So, the solution is not to confront them with theology, for that would be like driving away theology from truth. The solution, like Aquinas did, is to make new theological theories or adjust current ones to be in harmony with scientific theories.

To do otherwise would be like building a religion of lies.
I think the church’s present position regarding Sacred Teaching is to neither confront nor harmonize and, most certainly, not adjust her eternal truths to the temporary findings of the scientific community. Eternal Truth does not accomodate to “near truth”.

As St. JPII put it regarding the determination of a person’s death, “The Church does not make technical decisions” (John Paul II on Neurologic Criteria From the Address to the Transplant Specialists by Pope John Paul II).
 
I think the church’s present position regarding Sacred Teaching is to neither confront nor harmonize and, most certainly, not adjust her eternal truths to the temporary findings of the scientific community. Eternal Truth does not accomodate to “near truth”.
The findings of the scientific community are not “temporary” in the way I think you mean. Science is a cumulative enterprise. A good example that is thematic to human origins is the analysis of ancient Neanderthal DNA. When I was studying Anthropology in college, the study of ancient genomes did not exist, and I had a prof who was of the opinion that DNA from bones and fossils could not be recovered. The question that no body had an answer to at the time was: did we interbreed with Neanderthals or totally replace them? Just a few years later, scientists were able to get DNA from Neanderthal bones, and they started with the easy part to recover and analyze because it was small - Mitochondrial DNA. The haplo group for Neanderthals does not exist in any modern person tested, which suggested total replacement of Neanderthals by humans. Then, after they were able to sequence an entire genome from a Neanderthal, it was conformed that Neanderthals were not totally replaced. Their DNA makes up a small portion of every person who is not 100% of African heritage. Neanderthals never returned to Africa after their ancestors left Africa.

Over time, many beliefs held as absolutely true based on concepts of Eternal Truth and Divine Revelation have been abandoned precisely because science can falsify those propositions.
 
Over time, many beliefs held as absolutely true based on concepts of Eternal Truth and Divine Revelation have been abandoned precisely because science can falsify those propositions.
Derivative knowledge, knowledge partially dependent on the truth of something else, e.g. Divine Revelation, cannot claim to be the same in quality. That is, referring to an absolute truth does not impart the quality of absolute truth to that which is derived. When referring to he authority of Divine Revelation as supportive, the scientific community, not the church, claims the truth of their derivative claims.

For instance, examine your report on the belief that humans replaced Neanderthals. Science initially reports in the affirmative and, on discovering new and controverting evidence, negates the prior claim. But the teaching that God was directly involved in the instance of the first human being has not changed.
 
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Their DNA makes up a small portion of every person who is not 100% of African heritage. Neanderthals never returned to Africa after their ancestors left Africa.
As @TheLittleLady noted in post #7, some recent research disagrees.
“This is the first time we can detect the actual signal of Neanderthal ancestry in Africans,” said Lu Chen, a postdoctoral research associate at Princeton’s Lewis-Sigler Institute for Integrative Genomics (LSI) and a co-author of a new paper that published Thursday in the journal Cell.
Yes, constant adjusting of our understanding. Some things are axiomatic, ie creeds, but adjustments to our understandings happen there as well. God’s involvement in the creation of true men is now understood as taking more than a day, a prior understanding based on a different understanding of reading. The core truth still persists.
 
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Their DNA makes up a small portion of every person who is not 100% of African heritage. Neanderthals never returned to Africa after their ancestors left Africa.
Reread my sentence. I did not say that no African could have Neanderthal Ancestry. I said that if your ancestry was not 100% African, you will have Neanderthal DNA. Even the article you linked to does not claim that Neanderthals went back to Africa. It was their hybridized descendants who would have carried the genes. This only shows my point, about cumulative knowledge.
 
For instance, examine your report on the belief that humans replaced Neanderthals. Science initially reports in the affirmative and, on discovering new and controverting evidence, negates the prior claim. But the teaching that God was directly involved in the instance of the first human being has not changed.
You are misrepresenting the series of events I recounted. There was a question that could not be affirmatively decided based just on the fossil record. It was hotly debated, but there was no way to resolve it on just the bones. Once the technology was developed that could extract ancient DNA from bones, researchers were able to look at mtDNA, which is small an not nearly as complex as Nuclear DNA. The researchers still needed to make capturing that DNA more efficient. In the mean time, the results of the first test was published, but they never claimed that it was DEFINITIVELY AFFIRMING replacement. The same researchers did the mt DNA research gave a final resolution to the question once they had the whole genome. The answer could then be given: we did not totally replace Neanderthals.
 
The answer could then be given: we did not totally replace Neanderthals.
OK. One is always safer in claiming a non-universal. Still. the truth of this claim is dependent on the truth of all the antecedent claims and ultimately on the scientific method itself.

However, to my point, the truth of the following claim is independent of all that science claims.
But the teaching that God was directly involved in the instance of the first human being has not changed.
 
I agree with you on cumulative knowledge. I wanted to make a point that it is still accumulating, and very quickly. And that it is not always replacing older ideas, but more often a newer understanding that incorporates the older. Sort of like Neanderthals are part of our humanity rather than replaced.

Unfortunately, frustration with my neanderthal fingers not being comfortable with the keyboard kept me from explaining more clearly.

Do you think there are people with 100% African ancestry? They would have to live in an isolated community. Wakanda?
 
Really? You have never heard this turn of phrase?
Yeah but it’s ambiguous: what is it in this context exactly and how are you applying it?
I am taking paragraph 37 as an ex cathedra statement that he did intend a binding definition. He is defining exactly what a Catholic can or cannot hold with respect to Man’s origins.
It’s not held as a binding definition by the magisterium and successor popes have not referred to it as if that was the intention. When a pope makes an ex cathedra statement, the language includes some solemn and clearly stated intention, such as “We teach, declare and define” or “in order to remove all doubt” for the faithful. [I’m basing that on memory of the declarations that are not disputed or have their infallibility affirmed by the magisterium, such as the immaculate conception, the assumption, and priestly ordination.]

Even if it was a binding definition, however, there is no need to further restrict it in the way that you have done — all genetic data from only two biological parents — which actually defeats the purpose of much of the text in paragraph 37 by eliminating any meaningful distinction in the phrase “true men” or that Adam is one first parent of all those true men.
 
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Wakanda? I had to Google it. Fun.
But I think your point is well made, and the article referenced by TheLittleLady is somewhat misleading. There may possibly be isolated groups of nomadic Africans, such as the !Kung, who have no ancestors at all of non-African heritage, but I think even that is unlikely. Allyson is correct that if such people exist, then they have no ‘Neanderthal’ genes, but it seems quite likely that there are no such people.

Incidentally, I’m not too happy about the term ‘Neanderthal genes’, as if they were a rather special formulation. Very few of our genes are exclusive to Homo sapiens, but we don’t pick out this or that gene as being a ‘Homo erectus gene’ or even a ‘Tiktaalik gene’, according to the species within which the original mutation occurred. And of course, just because we contain such genes, that doesn’t mean that the originating species still exist. Modern Humans replaced Neanderthals just as surely as they replaced Homo erectus.
 
I agree with you on cumulative knowledge. I wanted to make a point that it is still accumulating, and very quickly. And that it is not always replacing older ideas, but more often a newer understanding that incorporates the older. Sort of like Neanderthals are part of our humanity rather than replaced.

Unfortunately, frustration with my neanderthal fingers not being comfortable with the keyboard kept me from explaining more clearly.

Do you think there are people with 100% African ancestry? They would have to live in an isolated community. Wakanda?
It definitely does accumulate quickly, and as it does, we can fairly say that we know more than we did before. I would like to see how the latest research from the CNN article pans out. At one point researchers thought that the % of Neanderthal DNA in any genome was up to 4%, but that number was revised down to 2%. What ever % came back into Africa, it is likely to be much smaller than 2% the farther you live from historical trade routes. African populations have far more genetic diversity than the rest of the world, and new discoveries have been made like the oldest know Y-Chromosome family. That is an interesting story, since it started with an African American woman who was researching her family history. She got a male cousin who was descended from the ancestor who came from Africa to agree to testing. It turned out that his Y was from a population that was not then identified. Eventually that Y showed up in Cameroon.
Popular article here; and journal summary here.

I do not think it would be surprising to find an individual whose ancestry was 100% made up of genes that were only in Africa just because of the shear amount of diversity. The pigmy’s may be such a group in theory. I would have to do more checking to be reasonably sure.
 
Incidentally, I’m not too happy about the term ‘Neanderthal genes’, as if they were a rather special formulation. Very few of our genes are exclusive to Homo sapiens, but we don’t pick out this or that gene as being a ‘Homo erectus gene’ or even a ‘Tiktaalik gene’, according to the species within which the original mutation occurred. And of course, just because we contain such genes, that doesn’t mean that the originating species still exist. Modern Humans replaced Neanderthals just as surely as they replaced Homo erectus.
This makes sense. Neanderthal genes are not some alien population separate and apart from all of humanity. It makes sense to think of the difference as the accumulation of mutations and adaptions during a period of physical separate from the original population creating a specific genetic group. The gene variant goes back to a certain time and place, which tells us about our history.

We are literally the last(est) man standing, after taking the best of the gene adaptations from our cousins 😉
 
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I agree with you as a criticism of reductionist materialism, physicalism and naturalism. Of course, it’s not merely another genetic mutation, but the immediate creation of a rational soul at conception, that makes a “true” man or woman. We are not kludges of random material chance, but creatures with a substantial form uniting matter and spirit.
 
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I am taking paragraph 37 as an ex cathedra statement
Well, that’s fine. Others may take it as the ramblings of a lunatic. Anybody’s individual response to any statement is personal to themselves, and your insistence upon your interpretation explains why in your original post you said that you:
see no way to reconcile what the Church requires us to believe about being descended from just one man and one woman with what we now know from the study of human genomes.
However, the rest of your OP seems carefully to explain why you also think that Pope Pius XII was wrong, placing you in the awkward position of being compelled to hold as true something you know to be untrue. I guess we assumed that you posted the dilemma in the hope of finding some way of reconciling these contradictory views, and have offered various possible solutions. One seems to be that we can distort Pope Pius’s words to conform to a possible scientific scenario, and another is that we need no longer take Humani Generis as a definitive statement of Catholic belief.

I feel that you are not happy with either of these ‘reconciliations’. Is that correct? If so, we’ll no doubt have to try another tack!
 
Yes, there is. Lots. Behavioural patterns discovered or developed in various groups of organisms have been observed to be be passed down via “social learning” to subsequent generations in numerous birds and mammals.
Social learning from extant individuals requires only the faculty of memory and the ability to mimic. Animals can do both. Remembering and moving to better places to forage as the seasons change does not seem to me a significant change in the way the animal interacts with the world. If there is a study of animals who, w/o intimate contact with human beings, evidence more than memory and mimic, I should like to read it.

In contrast, rather than migrating by memory, animals who put seeds in the ground and stay at home would be a significant change. Only animals able to abstract the concept of “seed” could do so. Only animals able to abstract language and symbols denoting words could develop seed technology, i.e., the development, production, harvesting, conditioning, processing, storage testing, quality control, distribution, and marketing of seeds from generation to generation.
 
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One seems to be that we can distort Pope Pius’s words to conform to a possible scientific scenario, and another is that we need no longer take Humani Generis as a definitive statement of Catholic belief.
@Allyson To add some nuance: whether or not a proposed scientific scenario distorts Pope Pius’s words is a personal interpretation of his implicit intention, nor do we have to accept that it was ever a binding definition.
 
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One seems to be that we can distort Pope Pius’s words to conform to a possible scientific scenario, and another is that we need no longer take Humani Generis as a definitive statement of Catholic belief.

I feel that you are not happy with either of these ‘reconciliations’. Is that correct? If so, we’ll no doubt have to try another tack!
Yes, I think you could say that I am looking for a middle road between the two of those. One point in which I think Humani Generis fails is that Pius does not name name and bring receipts when he spends a lot of word salad on explaining the errors paragraph 37 is meant to stand in opposition against. I know that Teilhard De Chardin was one of the figures in question. At minimum, the resolution would have to not fall into the errors that are what prompted the encyclical in the first place.

I am clearly not a short earther or anti-science. At the same time, I am careful to articulate orthodox theological views, and there are other people who would take the Pope more literally than I have - to the point of being short earth creationists.
Others may take it as the ramblings of a lunatic.
In which case papal infallibility fails 😉
 
@Allyson To add some nuance: whether or not a proposed scientific scenario distorts Pope Pius’s words is a personal interpretation of his implicit intention, nor do we have to accept that it was ever a binding definition.
Until another Pope makes a statement of equal formality in order to add nuance, paragraph 37 is the Church’s binding definition.
 
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