The 10 best Odd Lots episodes

1. 1

   The internet is a physical object

   Samanth Subramanian on the Undersea Cables That Keep the Internet Alive

   Nearly all international traffic runs through hair-thin strands of purified glass on the ocean floor, carrying laser pulses by total internal reflection, with wave division multiplexing stacking streams on different frequencies. Samanth Subramanian's point is that the installation process has not fundamentally changed since the Victorian telegraph: a survey ship maps a route around crevasses and volcanoes, and a cable ship pays the line out behind it. Tonga lost its connection in 2022 to a volcanic landslide.

   42 min · Read the summary →
2. 2

   The element with no substitute

   Now There's a Helium Shortage and It Affects More Than Balloons

   Helium has the lowest boiling point of any substance, the smallest atoms, no reactivity at all, and conducts heat well — four properties that together have no replacement. So it cools the superconducting magnets in every MRI, carries vapour in chip lithography (leading-edge nodes use ten times as much per unit as older ones), and pressurises cryogenic rocket fuel. Nick Snyder explains why a party-balloon commodity is a semiconductor bottleneck.

   51 min · Read the summary →
3. 3

   The dollar was Bohemian

   Brendan Greeley on the Real 500-Year History of the Dollar

   Hamilton's "ancient dollar" was a 250-year-old Spanish silver coin descended from a Bohemian one. A count with disputed title to a silver deposit paid his Saxon investors in large high-value coins rather than mixed denominations; those Joachimsthalers became thalers, then dollars, and Spain copied the weight for the pieces of eight that circulated from the Andes to Manila. Colonial ports then devalued their own currencies against each other to pull the silver ashore.

   55 min · Read the summary →
4. 4

   The plumbing episode that matters most

   Why Private Credit Got Entangled With Insurance

   Guggenheim first disclosed that 3 to 5 percent of the assets on its affiliated insurers' balance sheets came from elsewhere in the Guggenheim empire. After a federal investigation forced a recount, the figure was 40 percent. The episode uses that gap to explain the private-equity-plus-insurer flywheel — permanent patient capital in, private credit out — and the unresolved question of who eats the losses.

   52 min · Read the summary →
5. 5

   A commodity as a prediction market

   The Tungsten Market Is Warning of an Upcoming War

   Tungsten is as dense as gold and melts higher than any other metal, which makes it the material for armour-piercing rounds that hold their shape on impact. Demand is therefore near-zero in peacetime and enormous when conventional war looms, so the price behaves like a wager. Rotterdam warehouse tungsten went from about $300 per dry metric ton unit in 2022 to over $3,000, and a flooded Tasmanian mine is reopening after 35 years.

   44 min · Read the summary →
6. 6

   The operations one

   How a Major Grocery Store Chain Can Dramatically Lower the Cost of Food

   Aldi's US commercial chief walks through how the chain sells chicken breast at $2.19 a pound off Times Square, and none of it is a single trick. Grape buyers visit growers in California, Mexico and Chile three to four years ahead and contract specific plots out of more than a hundred varieties; the store design removes labour and waste at every step downstream. The best answer this show has produced to "why is food expensive".

   51 min · Read the summary →
7. 7

   The big thesis one

   The Nigerian Industrial Behemoth That Could Reshape the African Economy

   Joe Studwell, who wrote *How Asia Works*, argues that what held Africa back was a shortage of people rather than of capital: 220 million after the war, roughly Europe's density in 1500, against 1.5 billion now. Dangote's $20 billion refinery east of Lagos — working, expanding, heading for the largest listing in African history — is his evidence that the density threshold has been crossed.

   58 min · Read the summary →
8. 8

   Inelastic demand, illustrated

   Why Tomatoes Are the Most Expensive They've Been in Four Decades

   A $30 wholesale case of tomatoes briefly hit $65, and it had almost nothing to do with fertiliser or diesel. A Florida freeze destroyed 80% of the winter crop, over $150 million worth, and because demand for tomatoes does not move, the whole shock landed on price. The other half of the story is the NAFTA-era reversal: winter supply went from 80% domestic to 70% Mexican as growers there built shade houses with three to four times the yield.

   55 min · Read the summary →
9. 9

   One fishery, three continents

   How a Sardine Gets From the Ocean to a Can

   Morocco lands roughly half the world's sardines and supplied about 90% of the raw material for Spain's canneries. A 46% drop in the catch and an export ban on frozen fish tightened the entire European market at exactly the moment American demand for tinned fish was spiking. Fishwife's founder is careful to say overfishing was not the main cause, which is what makes it a supply-chain episode rather than a morality tale.

   43 min · Read the summary →
10. 10

    The strangest market they have covered

    Inside the Booming Market for Dinosaur Fossils

    Fossils come mostly off private land in Wyoming, Montana and South Dakota, dug by hunters who fund their own seasons and often find nothing. Galleries buy from photographs taken in the field and pay for preparation only after provenance checks, because export rules outside the US are murky enough that a London dealer sticks to American finds. Rising prices have expanded supply, since partial finds now justify a full dig.

    49 min · Read the summary →

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