Oh, that's interesting!

About Oh, that's interesting!

The podcast for people who can't stop asking "why." Every episode, we take one idea — from science, economics, history, math, or politics — and pull the thread until something surprising unravels. No PhD required. No fluff either. Whether it's a paper that quietly changed how we understand the world, a historical event nobody talks about anymore, or a number that shouldn't make sense but does — if it made us stop and say "oh, that's interesting," it's on the show. New episodes drop regularly. Bring your curiosity.

Publisher

Pietro Trentini

Category

society & culture

Language

en

Explicit

No

First episode

28 Mar 2026

Latest episode

24 Apr 2026

Latest episodes

6 episodes in the feed.

1. 

   24 Apr 2026

   Is our Map of the Universe broken?!

   Is our Map of the Universe broken?! What if everything we thought we knew about the cosmos turned out to be... incomplete? For decades, cosmologists have been working with a beautifully elegant model of the universe — one that explained the Big Bang, dark matter, dark energy, and how galaxies formed. It fit the data almost perfectly. Almost. In this episode, we dig into the growing list of cracks appearing in our standard model of cosmology. We're talking about galaxy structures so enormous they shouldn't exist, a stubborn disagreement about how fast the universe is expanding (and no, scientists still can't agree), and brand new images from the James Webb Space Telescope showing galaxies that formed way too early, way too big, and packed with elements that had no business being there yet. Is this a handful of measurement errors that will quietly disappear with more data? Or are we standing at the edge of a genuine scientific revolution — like the moment Mercury's weird orbit forced us to throw out Newton and invent general relativity? We explore the science, the tensions, and what it actually means when the universe stops behaving the way our best theories say it should. Sources & Further Reading The Standard Model of Cosmology Grayson et al. (2025) – "Guide to ΛCDM", Astrobites — astrobites.org/2025/01/06/lambda_cdm/ NASA ΛCDM Model — lambda.gsfc.nasa.gov Giant Cosmic Structures Lopez et al. (2022) – "A Giant Arc on the Sky", MNRAS — arxiv.org/abs/2201.06875 Clowes et al. (2013) – Huge Large Quasar Group, MNRAS — arxiv.org/abs/1211.6256 Horváth et al. (2015) – Hercules-Corona Borealis Great Wall, A&A — aanda.org Keenan et al. (2013) – The KBC Void ("Local Hole"), ApJ — iopscience.iop.org Aluri et al. (2023) – "Is the observable Universe consistent with the cosmological principle?", CQG — arxiv.org/abs/2210.07328 The Hubble Tension Riess et al. (2022) – SH0ES measurement, ApJL — arxiv.org/abs/2112.04510 Planck Collaboration (2014) – Planck 2013 results, A&A — aanda.org Freedman et al. (2025) – CCHP with JWST, ApJ — arxiv.org/abs/2408.06153 Abdalla et al. (2022) – "Cosmology intertwined", JHEAP — arxiv.org/abs/2203.06142 Poulin (2025) – "The Hubble Tension", CERN Courier — cerncourier.com Early Galaxies & JWST Naidu et al. (2025) – Galaxy at z=14.44, Preprint — arxiv.org/abs/2505.11263 Carniani et al. (2024) – Galaxies at z~14, Nature — nature.com/articles/s41586-024-07860-9 Cameron et al. (2023) – Nitrogen in GN-z11, MNRAS — academic.oup.com ESO (2025) – Oxygen in JADES-GS-z14-0 — eso.org/public/news/eso2507/ Dark Energy & DESI DESI Collaboration (2025) – DESI 2024 VII, JCAP — arxiv.org/abs/2411.12022 DESI Collaboration (2025) – DR2 Results — arxiv.org/abs/2503.14738 Other Open Problems Fields (2011) – The Primordial Lithium Problem, Annual Review — arxiv.org/abs/1203.3551 Bullock & Boylan-Kolchin (2017) – Small-scale challenges to ΛCDM — arxiv.org/abs/1707.04256

2. 

   17 Apr 2026

   The Minimum Wage Paradox: Is it Really a Cure for Poverty?

   Here's the description followed by the cited sources: The Minimum Wage Paradox: Is it Really a Cure for Poverty? Step into the complex and fiercely debated world of the minimum wage, moving far beyond the basic economics assumption that higher pay automatically leads to fewer jobs. This podcast explores the real-world ripple effects of wage floors, revealing how an increase doesn't just impact the lowest earners, but actually boosts the wages of millions of workers across the broader economy. Through data and real-world case studies, we examine how businesses truly absorb these higher labor costs. You will learn how independent businesses often adapt through price increases and productivity gains rather than mass layoffs, and how rising wages are simultaneously accelerating the push toward automation and industrial robots in sectors like fast food. Finally, the series unpacks the stark trade-offs of these policies. We analyze whether minimum wage hikes are a genuine cure for poverty and inequality, or a blunt instrument that risks shutting vulnerable populations—such as young, unskilled, and female workers—out of the labor market entirely. Whether you are a business owner, a policymaker, or an everyday consumer, this podcast breaks down the paradoxes, the empirical data, and the human impact behind the minimum wage debate. Sources The Very Idea of Applying Economics Minimum Wage: Theoretical and Empirical Debates Effects of the Minimum Wage on Employment Dynamics Minimum Wage and Unemployment: An Empirical Study on OECD Countries The Importance of Study Design in the Minimum-Wage Debate Impacts of Minimum Wages: Review of the International Evidence — UK Government The Minimum Wage Is a Poverty Wage — Center for American Progress Equity Implications of the Unchanged Federal Minimum Wage since 2009 — RISE The Hamilton Project: Ripple Effect Analysis — Brookings Institution The Effect of the Minimum Wage on Prices The Pass-Through of Minimum Wages into US Retail Prices The Impact of the Minimum Wage on Independent Businesses Small, Medium-Sized Independent U.S. Firms Adapted Well to Minimum Wage Increases Minimum-Wage Increases and Low-Wage Employment: Evidence from Seattle California $20 Fast Food Minimum Wage — Case Study Analysis IZA World of Labour: Minimum Wage and Youth Employment Pathways to Progress & Navigating Opportunity The Local Aggregate Effects of Minimum Wage Increases — Federal Reserve Bank of Boston What Happens When the Minimum Wage Rises? It Depends on Monetary Policy — Federal Reserve Bank of Kansas City Minimum Wage and Employment: Sectoral and Regional Perspectives — IMF Working Paper National Employment Law Project (NELP) — Corporate Profit and Low-Wage Worker Reports Economic Policy Institute — Federal Minimum Wage Policy Documents

3. 

   10 Apr 2026

   They Came From Beyond: Are 'Oumuamua, Borisov & ATLAS Alien Rocks or Alien Probes?

   In 2017, astronomers detected something unprecedented: an object moving through our solar system that didn't belong here. Since then, two more have followed. This episode takes you deep into the mystery of 1I/'Oumuamua, 2I/Borisov, and 3I/ATLAS — the first three confirmed interstellar objects ever observed passing through our cosmic backyard — examining their bizarre physical characteristics and what they might tell us about the universe beyond our solar system. At the heart of the episode lies one stubborn, unsettling anomaly: 'Oumuamua accelerated. Not due to gravity, not due to any detectable outgassing — it simply sped up in ways that defied easy explanation. We walk through the leading natural hypotheses, from hydrogen and nitrogen icebergs to fractal dust aggregates, and ask honestly: do any of them fully hold up? Then we confront the controversial question head-on. Harvard astronomer Avi Loeb has argued publicly and provocatively that 'Oumuamua's behavior is consistent with an artificial light-sail or alien probe — a technosignature hiding in plain sight. We examine his hypothesis alongside the mainstream scientific consensus, letting the data and the disagreements speak for themselves. Finally, we look forward. Humanity may not have to wonder forever. We explore the bold mission concepts designed to actually chase these objects down — from the Initiative for Interstellar Studies' Project Lyra, which proposes advanced propulsion methods to catch up to 'Oumuamua, to proposals for repurposing NASA's Juno spacecraft to intercept 3I/ATLAS near Jupiter. The visitors are leaving. The question is whether we can follow.

4. 

   3 Apr 2026

   Will AI Take Your Job? History Says Otherwise!

   Every technological revolution arrives with the same warning: the machines are coming, and this time, the jobs won't come back. They always do — and then some. In this episode, we trace how technology has been the single greatest driver of wealth and living standards in human history, from the Industrial Revolution to the AI era. Drawing on centuries of economic history, we explore Schumpeter's concept of creative destruction — how innovation doesn't just eliminate jobs, it builds entirely new industries and professions no one could have predicted. As BBVA Research describes it, today's labor market is a race between automation and human capability, one where humans consistently find new ground to stand on. App developers, data scientists, cybersecurity experts: none of these existed a generation ago. New technologies act as augmentation tools, taking over routine tasks and leaving behind work that demands higher expertise — and commands higher pay. MIT Sloan's research on automation shows that this shift doesn't shrink the value of labor; it elevates it. But we don't just tell the optimistic story. We also ask the harder question: who gets left behind? Research on computerization and working life shows that older workers have historically struggled with a knowledge gap during rapid tech shifts, facing wage cuts, part-time transitions, or early retirement. Routine workers in easily automated roles face real displacement. And those without access to reskilling — as highlighted by the Pissarides Review into the Future of Work — often can't keep pace with shifting skill demands. Historical data from the Aspen Economic Strategy Group shows how entire occupational categories — farming, manual labor, clerical work — have declined over the last century, while new ones emerged to replace them and then some. Technology creates more jobs than it destroys. The evidence is clear. The challenge is making sure the gains reach everyone. Sources: The Dialectics of Creative Destruction: A Multi-Centennial Analysis The Impact of Technological Advances on the Labour Market — BBVA Research A New Look at How Automation Changes the Value of Labor — MIT Sloan Computerization, Obsolescence and the Length of Working Life Assessing the Impact of Technological Change on Similar Occupations The Pissarides Review into the Future of Work and Wellbeing Technological Disruption in the US Labor Market — Aspen Economic Strategy Group

5. 

   1 Apr 2026

   Special Episode: Crude Mistakes — The Economics of Oil Crises and Failed Policy

   From the 1973 embargo to today, governments have repeatedly responded to oil crises with interventions that sounded reasonable but made things worse. Price ceilings created gas lines. Subsidies distorted markets for years. Emergency stockpile releases bought weeks, not stability. We dig into the economic mechanics behind oil shocks, examine why well-intentioned policies backfired, and lay out what economists say governments should actually do when the next crisis hits.

6. 

   28 Mar 2026

   Engines of Liberation: The Unexpected Force That Freed Women

   Engines of Liberation: What Really Freed Women in the 1900s We tend to think of women's liberation as a story of protests, politics, and cultural change. And it was. But what if the most powerful force behind it all wasn't a movement — it was a household appliance? In a 2005 paper published in the Review of Economic Studies, economists Jeremy Greenwood, Ananth Seshadri, and Mehmet Yorukoglu set out to answer a deceptively simple question: why did married female labour-force participation go from nearly zero in 1900 to over 50% by 1980? Their answer is striking — the consumer durables revolution, think washing machines, refrigerators, and vacuum cleaners, may have done more to liberate women than any social movement. In 1900, the average household spent 58 hours a week on chores. By 1975, that number had collapsed to just 18. All that freed-up time had to go somewhere. In this episode, we break down what the numbers actually show, why the gender wage gap alone can't explain the shift, and what a rusty scrubboard from 1900 tells us about the economics of freedom. Because sometimes, history's biggest revolutions happen quietly — in the laundry room. 📄 Source: Greenwood, J., Seshadri, A., & Yorukoglu, M. — "Engines of Liberation", Review of Economic Studies, Vol. 72 (2005), pp. 109–133 🔗 Full paper: jeremygreenwood.net