by jimwalton » Sun Jul 09, 2017 4:08 pm
Great response. Thank you for the dialogue.
As far as metaphysics is concerned, I guess I see lots of things existing that don't have material substance. Is there such a thing as power? Love? Justice? Peace? Are they real? I say they are, but they're abstractions and concepts. But they're just as real as havoc, rebellion, and defiance.
What about memories? Are memories real? I say they are. They don't have any material substance, but just this morning I called something to mind that happened 20 years ago. Where did THAT come from? It's amazing what's in my brain (and what isn't, frankly). But it's just as metaphysical as power or love. What about intuitions. People have intuitions that they bank on, act on, and make value judgments on. Are these kinds of things just as real as the table my computer is on? I believe they are, but in a very different way. Not every kind of existence is material, measurable, reproducible, or subject to examination in a lab.
What about time? I know we've talked about this, but I think time is a metaphysical reality and not a material one. There's also language. Does language exist? Sure it does, but not like a chair or a tree. There are so many different kinds of existence, so many realities.
Dr. Evandro Agazzi, President of the International Academy of Philosophy and Science in Brussels, published a paper about our modern conception of existence. He said that in the realm of science we will make flat statements that the world exists, yet the same person would say they "believe" God exists. Why should we use different wording? He says it goes back to a principle of authority. Our view of science as an authority causes us to talk about material things as existence, but non-material things as simply our opinions or beliefs. The moral law within us exists just as surely as the stars in the heavens, he says (reflecting with Kant). He says that space is filled with places that have a particular purpose and therefore they exist—they are impregnated with meaning that differentiates each place from the other. There is material homogeneity (made up of atoms, molecules), but not homogeneity of purpose or role. He then moved to the issue of time in his lecture. Time also has places and in time we have distinct events that each has its own purpose. Special events have no homogeneity—each is unique as it exists in a moment in time. In space and time the distinctive places that exist are identified in relative terms. They all exist relative to the person. In time, you cannot speak about the present unless there is a subject who says "now." So, in the same way, time is relative to us. Present, past and future do not exist in physics; they exist in our experience only in relation to us. Heaven, earth and time all have a religious sense and a personal sense—and that is why they really exist. Principles of physics are delimited for the sake of objectivity. It cannot and does not cover the whole of reality. Metaphysics have always existed alongside of physics and are needed to fill in the totality of reality. Never in history were these things seen as in opposition. Humans always seek to give sense and value to their life. Belief and knowledge together make up the totality of reality; science cannot have ultimate authority because it is only one slice of reality. He propounds an "operational ontology."
> Evolution is the non-random selection of randomly varying replicators.
Oh, I agree that there is abundant evidence for selection of randomly varying replicators, but there are several problems with natural selection and mutation. Let's use the analogy of a bicycle. The first primeval genome encoded the assembly instructions for the first bike. Genetic replication means that the instruction manual was copied by an invisible "scribe" to make more instruction manuals. Each manual was used to make a new bike. The scribe, however, made changes in each manual, so each bike came out differently. Each bike had its own unique instruction manual taped to it. When you junk a bike, you also junk its instruction manual. New copies of instruction manuals can only be copied from the immediately preceding generation of bikes, just before they were discarded, or kept. Each new manual has changes (errors) in it. Since the manuals are sequential, errors are accumulated over time, and the resulting bikes change accordingly.
No doubt you realize we are looking at a deteriorating picture. Information is being lost, and the bikes will doubtless deteriorate in quality. Eventually the system will break down, the manuals will be gibberish, and workable bikes will be extinct.
But now we introduce a hero: natural selection. Natural selection is like a quality control agent, deciding which bikes are suitable for further copying. Natural selection instructs the scribes not to copy manuals from inferior bikes because it discards those bikes and their manuals. But it is important to understand there is never any critique of the instructions or selection of instructions—only of bikes. Mutations happen at the level of the instruction manuals, but selection is only carried out on the level of the whole organism (the bikes themselves). The scribe and the judge work entirely independently of each other and never communicate. The scribe is essentially blind; he can only see individual letters (DNA) while he is copying code. The judge is also essentially blind, but he is extremely far-sighted. He never sees the code in the manuals, or even the bike's components. He can only say "yes" to one bike and "no" to another. The scribe knows nothing of bikes, but only of code. He duplicates code, whether good or bad, and he makes more mistakes with every turn. The judge knows nothing of code but only of bikes. He gives the "good" bikes back to the scribe to copy the next code. Ah, the process of evolution as the non-random selection of randomly varying replicators! Got it, and agree. You don't have to convince me that the amount of evidence is staggering. We are similar to apes? Of course. We are in the same genetic line.
But back to where I was. How accurately can we rely on this process for improving genomic information? The scribe can leave information code out, and he can also expand the code by inserting new code, like duplicating code already there. It's not really new information, but it does yield a different manual (invariably confusing and disrupting it). But the judge only lets through functional (good) bikes. In theory, bad duplications are tossed and eliminated while harmless or beneficial duplications can be preserved. But then the "harmless" duplications begin to have errors in them, and some of these errors might create new and useful information, like a new component for the bikes. Eventually these errors and misspellings might produce an internal combustion engine, transmissions, etc., and our bike becomes a motorcycle, or even a plane, or a Space Shuttle!
Can misspellings and selective copying really do this? Remember, no intelligence is involved in this scenario. The "scribe" is really a complex array of brainless molecular machines that blindly duplicate DNA. The "judge" is the brainless tendency for some pieces to reproduce more than others, or to survive for the next round. Natural selection is not intelligent, but blind and mechanistic. The scribe and judge have neither foresight nor intelligence; their combined IQ = 0.
Add to this that random mutations consistently destroy information. Science can show us not one single, crystal-clear example of a known random mutation that unambiguously created information. Though certain mutations could be described as beneficial, none have created information. Geneticists have learned that beneficial mutations occur at a rate less than 1 in a million, so low as to be immeasurable. Everything about the true distribution of mutations argues against their possible role in forward evolution. Dr. Alexey Kondrashov believes the actual rate of point mutations (misspellings) per person may be as high as 300 per person per generation. If we assume that 97% of the genome is perfectly neutral junk, this would still mean that at least 3 additional deleterious mutations are occurring per person per generation. Every one us is a mutant many times over. What type of selection scheme could possibly stop this type of loss of information? There is none.
Natural selection cannot overcome this obstacle, since natural selection can only evaluate the bikes that come to it. It can't change the code. Natural selection works, of course, on a limited level (in a lab with intelligent agents manipulating the genome).
I've written too much. There needs to be give and take here, so I'll stop even though there's much more to say. But my point is that evolutionary theory as pure scientific naturalism is falsifiable as an axiom of life's origins and progressions. Certain pieces of it are solid and proved, of course, but the number of missing pieces is a defeater.
> I believe it has always been wrong to publicly murder someone for not believing in your religion so that others will see the murder and turn away from the "wickedness" of believing in a different religion. Not just today. Not just yesterday. ALWAYS.
This is very interesting. So you subscribe to objective morality! Hmm. Since you argued against my concept of objective morality ("I'm willing to consider the idea of objective morality if you can show me that morals are objective, but so far it seems that your basis for your 'objective morality' doesn't objectively exist (meaning you don't have objective morality since your basis for your morality doesn't objectively exist"), I'm intrigued that you believe in objective morality. What is the source of this objective statement that it is ALWAYS wrong (and always objectively has been and will be) to murder someone for not believing in your religion?