potatoepus

He maketh me to lie down in green pastures; he leadeth me beside the still waters.

For example, your travelers might know that they're near civilization when they start finding trees in the woods that have been tapped, for pitch or for sap. They might find a forester's trap line and trace it back to his hut to get medical care. Maybe they retrace the passage of a peasant and his pig out hunting for truffles. If they're coming along a coast, maybe your travelers come across the pools where sea water is dried down to salt, or the furnaces where bog iron ore is smelted.

Maybe they see a column of smoke and follow it to the house-sized kilns of a potter's yard where men work making bricks or roof tiles. From miles away they could smell the unmistakeable odor of pine sap being rendered down into pitch, and follow that to a village. Or they hear the flute playing of a shepherd boy whiling away the hours in the high pasture.

They could find the clearing where the charcoal burners recently broke down an earth kiln, and follow the hoof prints and drag marks of their horse and sledge as they hauled the charcoal back to civilization. Or follow the sound of metal on stone to a quarry or gravel pit. Maybe they know they're nearly to town when they come across a clay bank with signs of recent clay gathering.

Of course around every town and city there will be farms, more densely packed the closer you are. But don't just think of fields of grains or vegetables. Think of managed woodlands, like maybe trees coppiced-- cut and then regrown--to customize the shape or size of the branches. Cows being grazed in a communal green. Waiting as a huge flock of ducks is driven across the road. Orchards in bloom.

If they're approaching by road, there will be things best done out of town. The threshing floor where grain is beaten with flails or run through crushing wheels to separate the grain from its casing, and then winnowed, using the wind to carry away the chaff. Laundresses working in the river, their linens bleaching on the grass at the drying yard. The stench of the tanners, barred from town for stinking so badly. The rushing wheel-race and great creaking wheel of the flour mill.

If it's a larger town, there might be a livestock market outside the gates, with goats milling in woven willow pens or chickens in wooden cages. Or a line of horses for the wealthier buyer or your desperate travelers. There might be a red light district, escaping the regulations of the city proper, or plain old slums. More industrial yards, like the yards where fabric is dyed (these might also smell quite bad, like rotting plant material, or urine).

The coppice and pollard systems are one of my favorite pre-modern things, it's just so visually unique and sensible, but most people haven't heard about it.

When you coppice, you cut the tree close to the ground, so only the trunk is left, then the tree puts out fairly straight shoots that are great for firewood. They would typically have these trees harvested on rotation so new trees would be ready every year.

This is a coppiced tree:

When you pollard, you cut the tree to the trunk, but higher, and let the branches grow for longer. They'll be be nice and straight (depending on species) with fewer knots, and suitable to various crafts without much need to work the wood. Sadly seems to be etymologically unrelated to "pole", though the branches from these trees were used to make poles. Part of why you do this instead of coppicing is that the shoots are out of reach of animals.

This is a pollarded tree:

114 people died in the Hyatt Regency collapse, and in the US it's the third largest structural collapse fatality count, behind 9/11 and the Pemberton Mill collapse in 1860.

I've learned about this tragedy in my physics classes, to demonstrate tensile strength, and as a reminder about the importance of calculations being done right. I've also learned about it in my legal classes as an example of construction defect lawsuits. I've seen it referenced in disaster response classes.

Between AI and the current Presidential administration, we're barrelling right back towards this nightmare.

There are multiple errors that resulted in this collapse, but these stand out to me:

1. Kansas City was facing high unemployment and needed to attract jobs and business into the city. So the planning and inspection departments may have looked too closely at the designs.

2. An engineering firm too lazy to double check their designs or design changes by the manufacturer before approving them. The error that resulted in the collapse was one that the owner of the engineering firm said that a "first year engineering student" would spot.

3. The steel manufacturer treating preliminary plans as final plans, not verifying the math on their end.

The bridges' original design could only hold 60% of the minimum load required by city code. The design changes recommended by the manufacturer halved that. Less than a year and 3 weeks from opening to the public, the whole thing collapse.

Articles about the collapse say that everyone "trusted" the other party to have done the calculations correctly.

A significant portion of the population trusts what the computer or AI tells them, without checking. Imprecisely calibrated AI hallucinate information. The US economy is going into a downturn and federal regulatory agencies are being gutted.

We are going to see the Hyatt Regency Collapse repeat over and over for decades, not just in buildings, but in medicine, manufacturing, the environment, etc.

Some of this we're just going to have to weather, but the message for AI users comes straight from IBM (once the world's leading computer manufacturer) back in 1979:

"A Computer Cannot Be Held Accountable. Therefore A Computer Should Never Make A Management Decision."

The owner of the engineering firm that designed the Hyatt Regency spent the rest of his life lecturing on the disaster, to serve as a warning to his fellow engineers about the real-life consequences of sloppy design.

I don't think Sam Altman or Mark Zuckerberg or Elon Musk will have the courage or the honor to do that when OpenAI / Meta / xAI are responsible for getting people killed.

We had some absolutely criminal negligence in the building of the Quebec Bridge, with multiple engineering firms ignoring real signs of structural issues.

There is some debate about this, but most engineers in Canada agree this started a new ritual upon graduation with a B. Eng from any Canadian university. You attend a ceremony upon graduation and are given an Iron Ring.

You wear it on the pinky of your dominant hand, so it touches any paper you are asked to sign. Every time you sign off on something in your capacity as an engineer, you are reminded of your duties and obligations.

I have engineers in my family, and it is considered a sacred oath. Much like doctors, Canadian engineers have an ethos to do no harm.

These are from the last 8 hours only. And not all of them.

We're here! We're here we're here we're here!

Check the notes! There are so many of us and so many who love us.

so many of us and so

many who love us.

happy yuri day to all sapphics 💕👩‍❤️‍💋‍👩