Comment by jxjnskkzxxhx

7 days ago

> As Brusatte notes, a lot of what we now know about dinosaurs has been naturally accumulative knowledge spanning decades of ongoing research.

Yeah I've felt this. I'm old enough (41) that some of the things that I was taught as a child are no longer beloved to be true. Not sure if I should feel sad that it's happening so slowly, or happy that's happening at all. Or concerned that we have no first principles way of estimating whether our scientific progress is fast or slow.

I think it is also interesting to think about how many things we learned about dinosaurs directly because of Jurassic Park. Jurassic Park spiked a huge amount of interest in the science. It's said that the 3D modeling of dinosaur skeleton kinematics for animating them in Jurassic Park was one of the biggest spurs into reevaluating the avian relationship with dinosaurs ("oh, yeah this skeleton would have to walk like a big chicken") and that in turn spurned deeper research into how many of them may have been feathered rather than scaled.

We can see all the faults in the original Jurassic Park from everything that we've learned since Jurassic Park, but we still sort of owe a debt to JP for bringing a lot of those ideas into public consciousness in a fun way and throwing a lot of money at some of the earliest 3D studies of dinosaur motion.

Which is interesting in how I grew up "knowing" the asteroid/meteor killed the dinosaurs, but TFA suggests it was just a theory at the time of my learning. Or how I grew up with images of the planets, not knowing that they were only taken when I was a small kid. It is just a weird thing to think about how some knowledge we accept as known might not have been known by our grandparents or even our parents. It just seems like we would have known things for a lot longer.

  • My memory is the opposite: I recall learning that an asteroid impact was the most likely explanation, and the K-T boundary was the biggest piece of evidence, and the only problem was that they hadn’t discovered a candidate impact crater. And it wasn’t until the first decade of the 2000s that consensus started to emerge that the big crater in the Yucatán is the likely cause.

  • The pictures of the planets bit makes sense, as even with a telescope (through which we've seen the plants for a very long time) there's not really enough light for early film techniques to capture well.

    I do identify a bit with the dinosaur example, and to use another: plate tectonics wasn't a formalized and accepted theory until late in the 1960's. It spread to schools quickly, but by that point my parents had already graduated, and it was new for my parents when my older brother went to school.

    • I had a teacher get in trouble for discussing plate tectonics in the 1990s, in a public school. Turns out it still upsets a lot of religious groups and also was tied to some peculiar schools of climate change denialists in the 90s. I still don't entirely know how denying plate tectonics was useful for climate change denial that decade, I just remember how weird it was for the teacher to suggest to forget a whole science lecture because people didn't want us to know it. Come to think of it, that probably also was around the time we watched Jurassic Park in class.

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    • plate tectonics is a good one. I definitely remember my mom telling me as a kid how South America and Africa look like they fit together, and my dad talking about Pangea being the name when the pieces were fit together. it wasn't until much later that I realized that my parents were not taught this in school, but my dad just kept up with current events much more. It is weird to think that something is so new that even your parents were not taught it.

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  • it's still "just" a theory, in the same way gravitation is "just" a theory

    and always will be until it's dis-proven, or someone invents a time machine and we can go and see it for ourselves

    • until it's dis-proven, or until it is proven.

      we have plenty of evidence of the movement of plates. we know where subduction zones are. what does it take to prove a theory if not repeatable tests/observations?

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Why does the pace of discovery matter at all? Fast or slow compared to what? What could you even do about it in any case?