At Quanta: Cells find “optimal” solutions, not just good ones

structure of an animal cell/royroydeb (CC BY-SA 4.0)



We are told that cells’s ability hints at “a more general principle of life”:





The same precision and reproducibility emerge from a sea of noise again and again in a range of cellular processes. That mounting evidence is leading some biologists to a bold hypothesis: that where information is concerned, cells might often find solutions to life’s challenges that are not just good but optimal — that cells extract as much useful information from their complex surroundings as is theoretically possible. Questions about optimal decoding, according to Aleksandra Walczak, a biophysicist at the École Normale Supérieure in Paris, “are everywhere in biology.”Jordana Cepelewicz, “The Math That Tells Cells What They Are” at Quanta





What then becomes of “bad design” arguments, like those of Nathan Lents? In a transient world, any solution can only be optimal for a given life, as it must be factored against other lives.





Before you go: In Nature: Cells have “secret conversations” We say this a lot: That’s a lot of information to have simply come into being by natural selection acting on random mutation (Darwinism). It’s getting not only ridiculous but obviously ridiculous.





Researchers: Helpful gut microbes send messages to their hosts If the strategy is clearly identified, they should look for non-helpful microbes that have found a way to copy it (horizontal gene transfer?)





Cells and proteins use sugars to talk to one another Cells are like Neanderthal man. They get smarter every time we run into them. And just think, it all just tumbled into existence by natural selection acting on random mutations (Darwinism) too…





Researchers: First animal cell was not simple; it could “transdifferentiate” From the paper: “… these analyses offer no support for the homology of sponge choanocytes and choanoflagellates, nor for the view that the first multicellular animals were simple balls of cells with limited capacity to differentiate.”





“Interspecies communication” strategy between gut bacteria and mammalian hosts’ genes described





Researchers: Cells Have A Repair Crew That Fixes Local Leaks





Researchers: How The Immune System “Thinks”





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Researcher: Mathematics Sheds Light On “Unfathomably Complex” Cellular Thinking





How do cells in the body know where they are supposed to be?





Researchers A Kill Cancer Code Is Embedded in Every Cell


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Published on March 14, 2019 05:10
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