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Cake day: June 8th, 2023

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  • There are a lot of missing steps people don’t really understand yet R.E. how this all amounts to something complicated like “a liver”. But we think that the basic building block of it is that there are gradients of chemical concentration that some cells set up, and then other cells react to the level of the chemical and decide to different things. There’s a famous analogy of the French Flag Model, where the different stripes of the French flag are imagined to emerge from how far you are from the left edge where a “morphogen” chemical is coming from, because cells detect and react to different concentrations of the chemical in different ways.

    And the cells do these things because the DNA programs them to do it. Some genes produce proteins that can turn around and bind to the DNA that encodes other genes, and make those other genes produce more or fewer proteins of their own. Proteins can be made so that they bind or unbind DNA in the presence of other proteins, or particular chemicals, or which can function to turn one chemical into another. So you can have little logic circuits made out of genes that measure chemicals and turn other genes on and off. And you can have little memory circuits based on which genes have things bound to them and which ones are currently on or off, so the cells can remember what it is they decided to be. And so the cells are programmed to differentiate into progressively more specific cell types over time depending on what signals they see, with the morphogen gradients or combinations of them allowing the cells to have some idea of where they are in the body.

    And the proteins are these little squishy clicky things, like long strings of magnets that will snap into certain shapes, or that can swap between a few shapes. They can be shaped so they fit really nicely against certain shapes of DNA sequence or other proteins, or so that they fit really nicely against small molecules with a piece pushing on the molecule in just the right place to make it easy for an atom to break off the end of it or whatever. And because they live in this weird tiny world where everything is constantly vibrating around and banging against everything else (because of how tiny the volumes get when you shrink the lengths to cell size), this is enough for them to find and stick to the stuff they are shaped to stick to.

    Then depending on genetic variation between people, the proteins involved can e.g. have different set points for the concentrations they react to, and that can translate into the threshold between cells deciding to do one thing or another moving around in the body, and in turn translate into people having e.g. a wider or narrower region of their face decide to be a nose.





  • And it doesn’t cause other problems like outsmarting the brain systems that are supposed to be attaching your intelligence to the interests of your body? Or the people inconveniently stopping you from snorting cocaine constantly until you die? And there’s no level of intelligence you reach where you note that higher levels are unlikely to be any more use to you in achieving your actual goals, versus spending that button-pushing time on other tasks? And all this intelligence is free and doesn’t require any energy input to run in your head? And at some level you become intelligent enough to impart these abilities to your descendants or to just never die? And you reach a level of intelligence where you can fight off the CIA before you reach a level of intelligence where you interest the CIA?

    People don’t generally reason about things like “intelligence” as an abstract value from zero to infinity, because we don’t encounter such things very often. What we do encounter is people trying to scam us. If you present someone with something that appears to be a 100% obvious perfect move with absolutely no drawbacks whatsoever, they mostly correctly conclude that they just aren’t smart enough to understand the catch.















  • planish@sh.itjust.workstoMemes@lemmy.mlKenya
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    11 months ago

    The problem is they have no idea about the internal structure of the tokens they use, except what’s present in the data set. The model sees “Kenya” as 8473 299 = Ken ya or something, and how is it supposed to know token 8473, often used for the name of Barbie’s boyfriend, starts with K?

    Also they love to make up Fun Facts.