But that isn’t even fully true when you compare the massive amount of illnesses that would have been more common due to poor hygiene. Many of these diseases could infect through any open holes in the body or anything they eat and just give them a bad enough fever they get brain damage.

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Not really. Those gains and loses haven't been actualized.

In a practical sense for the rich it means that they are less able to take out loans using that 'paper-value' as collateral.

Nothing. The idea that rust itself causes tetanus is a misconception.

Tetanus doesn't come from rust, it comes from things being dirty. It lives in soil. The idea of a "rusty nail" is more indicative that it's been out there in the environment a long time and may have picked up contamination. The rust itself is incidental.

If you get a puncture wound from a non-rusty nail or anything similar out in a field you should also probably get a tetanus shot for that as well.

I call it a kaiser blade.

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Because you're used to it from birth. I wonder what someone who was born blind and deaf would feel.

Both cases are actually the same (well, not exactly, let me explain.) Regardless of where you are on the train, you're still moving horizontally at the speed the train is moving, and you don't immediately lose that momentum just because you jump. When you're inside the train you aren't actually landing right where you were, but with respect to the ground, you're traveling in an arc, and it just seems like you landed where you were because the train and you have the same horizontal speed. Things are the same on top of the train except you now have wind resistance to worry about, which can and will push back on (cancelling some of your horizontal speed with respect to the ground) you even while you are standing on the roof of the train. So you can in theory get the result where the train passes quickly under you, but it's the result of the difference between your horizontal momentum and the air resistance pushing back against you, and not caused simply by jumping

That’s my question. Who the hell has a rusty razor?!?

I don't remember her doing that, but who knows! I do remember helping myself to it without any hint of a cough, though, as a teenager, which in hindsight was not the best situation.

How to say you e been on Reddit forever without saying you have been on Reddit forever.

Fascinating. Is the heart monitor attached during the scan? If so wouldn't it be a health hazard with it possibly being magnetized?

air inside the train car moves with the train car, air outside the train car does not.

if you're standing on the roof, you've got some friction to hold you in place against the air rushing past. jumping while on top of the roof causes all that rushing air to smash into you totally unimpeded, pushing you back

Who the hell shaves with a rusty razor?

I remember Venezuela had something like this too. But I'm not sure if it was to do with the country printing money.

I've never heard of this policy ever existing, anywhere. I doubt it does. What does happen is that companies are always trying to cut costs from the top down.

In a hypothetical well run company, everyone tries to save unnecessary costs.

In most companies, it's a constant battle of higher management trying to cut costs and those lower down the rung wanting to get the job done and go home with the minimum of stress.

Lower management want to hit budget to not get bollocked / to get their bonuses, but they don't actually give a shit about the company's bottom line. If they can spend the money on stuff that will make their employees happier and make the work go smoother without those above them getting pissy, they usually will.

Why not give bonuses for reducing costs? That's really hard to do well. Likelihood is you'll just have managers completely fuck the business long term to hit short term targets. Better for them to not cut costs all the way they can than to gut the company in a year.

A minor correction to your comment.

Left alone the cycle repeats roughly every 25 hours for the average person. In a cave that would be the default sleep pattern. Not 24 hours.

The rest of what you say is pretty spot on but it's important to realise we have a clock that needs active sync, not a 24 hour clock that can look after itself.

A number of factors like blue light hitting your retina, body temperature, when you eat and when you exercise can effect this.

But light is the most powerful cue. The circadian clock in everyone is essentially one that runs at a slow rhythm. But light inhibits melatonin production and darkness accelerates it.

As well as melatonin there's cortisol triggered to wake you up. There's seratonin released in response to light when you're meant to be awake.

This is a concern as we moved away from incandescent lighting as the wavelength of light we're meant to see when the sun is out is more prevalent at home, from screens, in street and car lighting. Etc

https://www.news-medical.net/health/How-Does-the-Suprachiasmatic-Nucleus-(SCN)-Control-Circadian-Rhythm.aspx

Messing with light can get our melatonin, cortizol, and seratonin out of sync with each other. Leading to poor sleep and all the other effects from that.

For good sleep get a good light cycle, then clean air, then temperature, then noise right. So many people think of those in reverse.

The MRI thing I did a little work on (I was on another part of the team, but I knew the person who did the MRI work) was fetal imaging, ie. scanning a child in the womb.

The little bastards won't stay still, so you have a similar problem of somehow detecting and freezing movement, then doing superresolution reconstruction. Fun stuff!

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> Coffee would become $50 a cup

Exactly this. Prices would simply increase dramatically, rendering the additional money people received moot.

>Has any country every secretly tried this?

Yes, many have, and inflation is always the result. Governments have historically printed excess cash to pay of their own debts, which inevitably leads to massive amounts of inflation. Look up what happened in Zimbabwe.

Friendly reminder that while outside rust is more likely to pose a risk because it’s more likely to have been exposed to the bacteria shaving with a rusty razor still isn’t safe. It can still carry bad bacteria and give you a bad time.

They can. The US government basically did this during the financial crisis to create money to loan to banks. They just made trillions of dollars appear in government accounts, and then loaned that money out.

The problem is that injecting huge amounts of money into an economy will cause massive inflation. The supply of goods available for sale doesn't change, so people who suddenly have large amounts of cash will simply pay more for the scarce goods that exist. Case in point, the recent inflation struggles are partly (not entirely) due to the relief funds given to people and businesses during COVID.

I assumed this. Day to day would collapse. Like if everyone was rich there wouldn't be anyone to deliver their mail or clean the streets. But is it possible that governments could do this if somehow all 195 of them agreed? They just never chose this because inflation would destroy everything? Like everything would become the same. Coffee would become $50 a cup or if you wanted to import resources from another country it would just be 10x more expensive and nothing would ever change? Has any country every secretly tried this? Like who is the police in all this?

I've worked on this a little. It's usually a combination of gating and superresolution.

Superresolution -- MRI scanners get faster at lower resolutions. You can do a very low res or small volume scan in less than 100 milliseconds, which is fast enough to freeze most heart movement.

You can't see much in these very low res images, so instead you take 100s of them, with slight movement of the scanner each time, and then reconstruct a high-res image from all the low res images. The image reconstruction techniques in modern video games work a little like this.

Gating -- you attach a heart monitor and note the exact point in the heart cycle of each tiny scan you make. When you want to reconstruct the final movie, you put all the tiny scans into maybe 32 buckets, with one bucket for each 50ms period of the cycle, and then do the superresolution reconstruction on just the scans in that bucket. Put the 32 final images together and bingo, you have a movie you can loop.

People have experimented with extra techniques, like estimating motion vectors to remove movement and increase sharpness, but I don't know much about that. No doubt you could use ML to help as well.

tldr: the movies you see are composites of many, many heart cycles recorded over a long period of time.

I mean, the same can happen with Tylenol.