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Cake day: June 19th, 2023

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  • Apepollo11@lemmy.worldtoScience Memes@mander.xyzLamarck moment
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    18 days ago

    He was. He just didn’t get the mechanism behind it right.

    A crude way of explaining Lamarckian evolution would be to look at giraffes. Lamarckism suggests that because an animal that spends much of its life stretching its neck to reach food, it ends up with a slightly longer neck. This trait is then passed down to children, who might spend much of their lives stretching their necks, making them slightly longer. And so on.

    He correctly identified that speciation occurs over many many generations, as a result of tiny incremental changes.

    What Darwin did was to recognise the actual mechanism behind speciation - Natural Selection. Darwin was aware of and built on Lamarck’s work.

    Weirdly, within the last thirty years, we’ve realised that the truth is not so clear cut. Epigenetic changes do occur as a result of the environment and are hereditary. While genes are still the main drivers of evolution, these epigenetic changes affect gene expression.


  • Apepollo11@lemmy.worldtoAsklemmy@lemmy.mlWas it naivety?
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    6 months ago

    The shocking truth is that the US is just one of many, many, many democracies. There’s nothing uniquely American about democracy.

    The American system was based on the French implementation, which in turn was based on the British implementation.

    What is unique about American democracy is the scale. The biggest issue that America has is that the current incarnation is not fit for purpose - it’s a system that when used like it is, creates massive vote inequality, gives some “elected officials” what amounts to jobs for life and spreads blame so thin that (heaven forbid!) should someone try to create a dictatorship, it would be very hard to stop it.