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Mar 28, 2024 27 tweets 10 min read Read on X
Paleo artists often "shrink wrap" fossilized animal depictions

The T-Rex, Utahraptor, Triceratops—popular depictions of each of these animals shows skin so close to bone that it might be unrealistic

So let's shrink-wrap existing animals🧵

Can you guess what this is? Image
Preemptive note: All of this artwork is from C.M. Koseman, whose book (which is way more extensive than this thread) and some other material is linked at the end of the thread.

The last animal was a rhinoceros—the thing with the cooling heat sail!

Any idea what this animal is? Image
That last one might seem to be a dog, but it's actually a horse.

It's not so clear what this graceful beast might be. Image
The last picture was of a cow.

What about this monster? Its jaws can crush a steel car. Image
That metal-breaker was a hippopotamus.

This pack-hunting animal has a killer stare and wields a set of five switchblade claws on its forefeet. What might it be? Image
That was the house cat.

This one's a bit more mysterious, and clearly adapted to be a stealthy predator, right? Image
If you guessed that was a spider monkey, kudos to you. Future paleontologists might consider it an arboreal variation on humans, its cursorial relatives.

What of this one? It's not clear to future paleontologists if it's quadrupedal or bipedal. Image
That's the toad, which paleontologists might consider to be a long-legged forest ambler.

Any idea what this one is? Without preserved feathers, guessing might be hard! Image
If you guessed "Vulture", you're correct. But you probably didn't guess that!

You almost certainly won't guess this one. Image
That was a species of casque-headed hornbill, and paleontologists might suspect they use the casque for mating rituals. But we don't even know what they do with them in many cases today!

How's about this twofer? Note predator and prey: Image
If you guessed the "Swan" and the "Tadpole" (mistakenly believed to be a form of fish), then you were right.

What about this cute little predator? Image
That was an iguana, and due to fur being found on other small vertebrates like rats, it's assumed to have fur too.

Who's this courser? Image
That was a rabbit, but we wouldn't know it because posture is poorly preserved in fossils!

Now this one is simultaneously reassuring and disheartening. What might it be? Image
That's a python, and it might be assumed to have feet to support its body, much like the lizards its skeleton resembles. After all, we only have fragmentary remains!

Who's this guy? Image
That's a manatee. Remember, habitats change. A sea creature might be found in what's now a forested mountain. We might also only have remains like skulls.

This guy has a balloon-like facial sac. What might he be? Image
That's a bull elephant, and because no other animals have long, muscular appendages, he ends up with a face sac instead of his well-known trunk.

Time to dive underwater.

This one might seem to be a dolphin, but think outside the box. Image
It's a sperm whale, incorrectly believed to be a hunter of large pray. You know, like sharks.

What's this kelp forest stalker? Image
Why that's a bowhead whale of course! And as we know from its skeleton's extensible jaws, it must prey on animals as large as itself!

Going back to the land, who are we looking at now? Image
Because of its complicated nasal sinuses, the baboon might be assumed to have had venom glands and to have been a coursing hunter!

These guys have curved foot claws, sometimes serrated bills, and wings shorter than their legs. They must be vampiric! Image
But that's not the case, it's just an odd animal. It's a hummingbird, the only animal in its strange niche, and thus a prime candidate for misinterpretation!

Finally, who the hell is this? Image
That might be the first example of shrink wrapping and distorting the fossil record: the animal proposed to be pre-flood man, or Homo diluvii by Johann Jakob Scheuchzer in 1726

But though he thought he had evidence for the flood, he was describing the fossil of a salamander!Image
How we think about ancient animals is probably distorted by a tendency to shrink wrap their depictions and a desire to find function in form.

But much of what we observe in animals today, we still can't explain. Skin also drags, and feathers and fur abound (but not universally).
If you want to see more on this subject, I recommend the whole book, which contains many more illustrations and details for all of them.

Get it here: amazon.com/All-Yesterdays…
And if you're interested in speculation about possible futures, C.M. Koseman's All Tomorrows is spectacular. You can see it summarized on YouTube, here:
Koseman isn't the only person to have illustrated this issue either.

This opossum, for example, comes from the HowStuffWorks Tumblr:

Here's more: howstuffworks.tumblr.com/post/512612262…
imgur.com/a/BEz4r
Image
There is an error in describing sperm whales in the thread:

The issue is more that they would probably be thought of as behaving like sharks in the far future, but they're actually pretty social and frequently team players.
The artist for All Yesterdays and All Tomorrows has a Twitter account:

The opossum artist also has an account:

And the artist behind the inflated T-rex is apparently the creator of One Punch Man:
twitter.com/NixIllustration
twitter.com/NEBU_KURO

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More from @cremieuxrecueil

Mar 13
Today's deregulatory news is pretty big.

The White House is taking aim at the housing shortage by deregulating housing construction🧵 Image
A big part of the American Dream was created by a massive housing boom when the troops came home

Since the Great Financial Crisis, practically everywhere has reduced the number of permits they issue for new housing

This has resulted in housing cost growth outpacing wage growth: Image
To revive the American Dream, we need to build more homes.

If we want to build more homes, we'll have to overcome a lot of different regulatory burdens.

One step is to get rid of federal regulatory burdens that straddle homebuilders and owners with lots of random costs. Image
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Mar 13
In my latest article, I documented that the only RCT for functional medicine methods appears fraudulent🧵

Before getting into it, what's functional medicine?

It's a pseudoscience used to bilk patients by getting them on an unending cycle of tests, supplements, and more tests. Image
Functional medicine's practitioners claim that they can reveal and treat so-called "root causes" of people's health problems

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They find these things with unproven tests Image
If you run enough tests, you will be able to find something that looks 'off' about a patient, and if you're a functional medicine doctor, that's your 'A-ha!' moment, even if—as is usually the case—the result is just a false-positive and treating it is unlikely to do anything. Image
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Mar 12
What you see here is called "lying"

It's what happens when someone's anti-competitive protections are under attack

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If you want to open a new medical practice somewhere, you have to get your potential competitors to sign off, saying you're needed Image
If you want to add beds to a hospital, build facilities, purchase diagnostic scanners, but you live somewhere with CON laws, then you have to prove you're not creating competition for other medical facilities in the area, which is often the whole state.

No. Competition. Allowed. Image
The idea behind these laws is that people will spend excessively on healthcare, so to combat that, we'll have people report if there's more spending needed before approving it.

'A bed built is a bed filled' is the old adage.

But no one considered the obvious bad incentives. Image
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Mar 11
Nutrition science is the area of science that's suffered the most in the replication crisis. It is a graveyard of theories and pseudoscientific bullshit.

Now:

The HHS is going to make doctors to sit through 40 hours of classes where they'll have to take that bullshit seriously. Image
This reads like a list of the things that fared the worst in all of nutrition science and stuff with NO EVIDENCE.

When I read through this, my mouth was agape.

Whoever wrote this trash needs fired for incompetence. Mentally retarded people should not hold keep government posts.
'What did you learn in your mandatory nutrition misinformation class?'

'Well, if a patient comes in with a migraine, I'm supposed to sell them a WHOOP bracelet or an Oura ring so I can help them figure out their health age.'
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Mar 10
You should be flexible and you should be strong.

Strength training is a highly effective way to improve your flexibility, and I've made a graphic to put this into understandable terms: Image
This is from a meta-analysis of strength training trials.

What makes that so useful is that there's major publication bias for strength outcomes (pictured).

But, since authors weren't looking at it, there's no publication bias for flexibility outcomes.Image
Studies made their way into this meta-analysis because they had a flexibility outcome, but they made their way into the literature because they showed positive strength results.

This could indirectly biased the flexibility results because of selection on a correlated outcome.
Read 7 tweets
Mar 9
State IQ maps are interesting because they mostly reflect racial demographic mix.

The much more interesting maps are the race-specific ones🧵

Here's a thread of county-level IQ maps by race. First up? Whites: Image
The next-biggest group? Hispanics: Image
The next group is Blacks: Image
Read 6 tweets

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