The Forum > General Discussion > Reimmagine Australia adopting 60,000 year old culture.
Reimmagine Australia adopting 60,000 year old culture.
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thinkabit, If you listen to the theory of evolution then the developments happen from the process of unconscious thought within. Which means there is a power to change DNA from within i.e from Apes to Homosapien. The principle of evolution is the power to change and improve a brain.
Posted by Josephus, Friday, 14 January 2022 7:24:55 AM
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Dear Josephus,
You wrote: “The principle of evolution is the power to change and improve a brain.” That is not the principle of evolution. A parasite evolves from an independent organism to become an entity which exists by attaching itself to a host and gathering sustenance from that host. The parasite’s brain will be less powerful than its ancestor’s brain since it will no longer need it as much. The four key points of Darwin’s Theory of Evolution are: individuals of a species are not identical; traits are passed from generation to generation; more offspring are born than can survive; and only the survivors of the competition for resources will reproduce. An attribute not needed for survival will deteriorate. Posted by david f, Friday, 14 January 2022 3:37:31 PM
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I'm certain that you do not understand what biological evolution is Josephus. Biological evolution happens at the level of mutations to DNA strands (or RNA for some viruses). These mutations are just random events, they are not planned.
An example of biological evolution in action is that of the SARS-coV-2 virus* which is the cause of the current covid pandemic. Since the original outbreak the virus has evolved due to mutation numerous times so that now we have the alpha, beta, gamma, delta, ..., omicron variants that we have identified and named (there would actually be other variants- but these particular ones are prevalent enough that we have named them). Now obviously, the virus doesn't have a brain that caused the mutations. In fact, viruses in general are very simple things with very little internal structure. Basically they're just some genetic material and some proteins (the amino-acid sequences of the proteins present will be encoded in the genetic material). Instead of a the virus having a brain driving its evolution, each of the variants have come into existence due to genetic mutations caused by random events: eg errors in replication. Overall, there is nothing planning these genetic mutations. But if you still think a virus has a brain/mind, then does a collection of interlinked microscopic bits of plastic have a brain/mind as well? Because an assembly of some bits of plastic compared to a strand of genetic material with some proteins share quite a few similarities. A piece of plastic is a polymer which comprises a long linked string of a small number of different types of small carbon-based monomer units. Similarly a string of DNA/RNA is just a long polymer string of any of four small simple carbon-based monomers called nucleotides and also a protein a long string composed any of 20 different proteinogenic amino-acids. Aalthough the base repeating units for a plastic, genetic material and protein are different classes of compounds- they are still just relatively simple molecules of mostly carbon, hydrogen, oxygen, nitrogen and phosphorous. Posted by thinkabit, Friday, 14 January 2022 10:11:44 PM
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-- from above --
*: it should be noted that although viruses are subject to biological evolution, they themselves are not usually considered a life form since they don't contain their own machinery to self-replicate. Instead they hijack the internal machinery of the cell they infect and order its internal machinery to make new copies of the virus. But nether-the-less the way they change over time is a still an example of biological evolution. If you don't like the virus example, then you can take bacteria as an example instead. They are single cell life forms that evolve and they don't have anything at all they you could call a brain/mind since they are just the one cell. Posted by thinkabit, Friday, 14 January 2022 10:13:06 PM
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A mutation is a loss of information as has happened with SARS Covis 19 it was a deadly virus it has become less deadly but more transferrable. Do we have evidence that DNA is added to the Human genome that has not previously existed? But again, we are talking about body organic chemistry, and not about personal creative ideas and decisions.
Posted by Josephus, Saturday, 15 January 2022 8:18:00 AM
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>A mutation is a loss of information ...
It's not exactly clear what you mean by "loss of information", but not all possible genetic change results in a smaller genome. There are mutations that can insert into a DNA sequence: http://en.wikipedia.org/wiki/Insertion_(genetics) . But sides the above small insertion mutations, there is a process called Horizontal Gene Transfer that may even transfer very long strands of material into a genome. This is common in bacteria and is an essential part of their adaption for survival. http://en.wikipedia.org/wiki/Horizontal_gene_transfer Indeed, if you examine DNA of any living thing and you will find be oodles of examples of sequences of material that have been inserted into the DNA of the species over the ages. > ... as has happened with SARS Covis 19 it was a deadly virus it has become less deadly but more transferrable. In general not all variants of a virus are less deadly. An example of this is the flu. It is constantly mutating with new variants arising all the time. And every few years or so one of the new variants causes a more serious infection and significantly increases that year's world-wide deaths from flu. But even the current covid pandemic has variants that are more deadly: eg. the alpha is considered more deadly than the original which is the principle reasons why this particular variant was given a name. (There would be many, many, many variants by now but only the most prevalent and significant are ever named.) -- continued below -- Posted by thinkabit, Saturday, 15 January 2022 12:19:05 PM
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