Best What If It S Cool Podcasts (2025)

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The Nature Podcast festive spectacular 2025 42:16

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22m ago42:16

42:16

00:46 The gifts that sparked a love of science Nature put a call out for readers to tell us about memorable presents that first got them interested in science, or mementos of their life in research. These include telescopes, yeast-themed wedding rings, and... cows’ eyes. Nature: The gift that shaped my career in science 08:12 “I am the Very Model o…

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Health and Fitness Update Plus 'Are Organic Foods Worth It?' with Dr. Bobby Dubois | Ep 577 1:09:51

24m ago1:09:51

1:09:51

Brad Barrett shares updates on his health journey and effective workout principles, while Dr. Bobby discusses the costs and benefits of organic foods. The conversation encourages listeners to reconsider their food choices and encourages an increase in fruit and vegetable intake over focusing solely on organic options. Brad's muscle-building routine…

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Neanderthals mastered fire — 400,000 years ago 22:32

3m ago22:32

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00:46 Evidence of the earliest fire Baked soil, ancient tools, and materials that could be used to start fires show that Neanderthals were making fire in the UK 400,000 years ago — the earliest evidence of this skill found so far. Ancient humans are known to have used naturally occurring fires, but evidence of deliberate fire-starting has been hard…

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Raising FI‑Minded Kids: What Really Works | 15-Year-Old Rishi Vamdatt | Ep 576 58:12

5d ago58:12

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Join us as Rishi, a remarkable 15-year-old personal finance enthusiast, shares his journey and insights on financial literacy for the next generation. Rishi discusses key strategies for teaching kids about personal finance, including practical experience, understanding needs versus wants, and early investing through index funds. His insights aim to…

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Photobombing satellites could ruin the night sky for space telescopes 23:06

14d ago23:06

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00:46 How satellite mega-constellations could ruin space-based astronomy The ability of space-based telescopes to image the distant Universe could be in peril, according to new research investigating the impacts of light-pollution from future satellites. Streaks of reflected light from satellites currently in low-Earth orbit are already seen in tel…

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Breaking the Golden Handcuffs with 5 Kids | Sunny Burns | Ep 575 55:53

16d ago55:53

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Episode Summary: In this episode, Sunny Burns shares his journey to financial independence. After leaving a lucrative government job, he discusses the strategic choices that led to his success in real estate, alternative income streams, and how he's living a fulfilled life with his family of seven. Sunny emphasizes the importance of financial educa…

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Audio long read: Faulty mitochondria cause deadly diseases — fixing them is about to get a lot easier 17:19

17d ago17:19

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CRISPR-based gene editing has revolutionized modern biology, but these tools are unable to access the DNA that resides inside mitochondria. Researchers are eager to access and edit this DNA to understand more about the energy production and the mutations that can cause incurable mitochondrial diseases. Because CRISPR can’t help with these problems,…

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This is what lightning on Mars sounds like 28:24

20d ago28:24

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00:46 Martian ‘micro-lightning’ The sounds of ‘micro-lightning’ have been recorded by NASA’s Perseverance rover, ending a long search for the phenomenon on Mars. A lack of suitable equipment has made it difficult to gather evidence of lightning on the red planet, but a team of researchers realized that a microphone on Perseverance should be able to…

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Top Five Regrets of the Dying (Book Club with Frank Vasquez and Ginger) | Ep 574 1:17:47

24d ago1:17:47

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Join Ginger and Frank as they dive into the impactful concept of regret, exploring insights from Bronnie Ware's The Top Five Regrets of the Dying. Discover how these regrets can shape a life of fulfillment and happiness, and learn how to embrace self-expression and relationships to achieve true satisfaction. Episode Summary: In this episode, the ho…

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Insulin cream offers needle-free option for diabetes 42:05

28d ago42:05

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00:45 A molecule that delivers insulin through the skin Researchers have developed a skin-permeable polymer that can deliver insulin into the body, which they say could one day offer an alternative to injections for diabetes management. The skin’s structure presents a formidable barrier to the delivery of large drugs but in this work a team show th…

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Cognitive Behavioral Tools for FI With Jasper Lee, PhD | Ep 573 1:06:31

1M ago1:06:31

1:06:31

Show Notes Guest: Jasper Lee, PhD - Clinical Psychologist Episode Summary: In this episode, Jasper Lee discusses the psychological elements that impact the journey to financial independence (FI). He provides actionable insights on dealing with emotions and behaviors that influence financial decisions, emphasizing cognitive restructuring and behavio…

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‘Malicious use is already happening’: machine-learning pioneer on making AI safer 15:06

21d ago15:06

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Yoshua Bengio, considered by many to be one of the godfathers of AI, has long been at the forefront of machine-learning research . However, his opinions on the technology have shifted in recent years — he joins us to talk about ways to address the risks posed by AI, and his efforts to develop an AI with safety built in from the start. Nature: ‘It k…

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Huge eruption on a distant star confirmed at last 33:51

1M ago33:51

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00:45 A coronal mass ejection from a distant star Researchers have detected what they say is the strongest evidence yet of a coronal mass ejection (CME) coming from a star other than our Sun. CMEs are massive bursts of fast-moving plasma that can be detected thanks to the characteristic radio signal they produce. However, despite decades of searchi…

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Bias Towards Action: The Adventure List(s) | Ep 572 1:10:08

1M ago1:10:08

1:10:08

In this episode, hosts Brad, Emily W, and Emily C delve into the importance of building meaningful friendships and adding adventure to life. They discuss the concept of an "adventure list," embracing vulnerability, and the creativity that can stem from constraints. The conversation encourages listeners to engage in various levels of travel experien…

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Meet the ‘Wee-rex’. Tiny tyrannosaur is its own species 28:48

1M ago28:48

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00:45 The debate around Nanotyrannus A hotly debated species of dinosaur, assumed by many to be a juvenile T. rex, is actually a separate species, according to new research. Nanotyrannus was a dinosaur anatomically similar to T. rex, but about a tenth of the size, leading many to argue it was a young version of the iconic species. However, examinat…

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Getting Personal with Personal Finance: Maggie Tucker | ep 571 1:04:38

1M ago1:04:38

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Maggie Tucker shares her journey to financial independence at the age of 41, discussing her experiences with fear and anxiety about leaving a secure job. Her insights on the importance of community, transparency in financial matters, and travel with children highlight how to embrace a fulfilling life beyond conventional measures of success. Timesta…

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Bowhead whales can live for more than 200 years – this protein might be why 22:50

2M ago22:50

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00:47 How bowhead whales live so long Researchers have uncovered a protein that enhances DNA repair and may explain how bowhead whales can live more than 200 years. The protein, cold-induced RNA-binding protein, was shown to enhance repair of double stranded DNA breaks, a particularly troublesome kind of damage. The team showed that this protein co…

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State of the Stock Market 2025 Q&A with Brian Feroldi | Ep 570 1:03:47

2M ago1:03:47

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Brian Feroldi discusses the current state of the stock market, providing insights on market valuations, personal investment strategies, and the impact of artificial intelligence on stock analysis. The conversation highlights the importance of sustainability in stock market growth, potential investment pitfalls, and the benefits of leveraging AI too…

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Audio long read: How to get the best night’s sleep — what the science says 15:33

2M ago15:33

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Advice on how to get good sleep is everywhere, with the market for sleep aids worth more than US$100 billion annually. However, scientists warn that online hacks and pricey tools aren’t always effective, and suggest that lessons learnt about the workings of a network of biological clocks found in the human body could ultimately lead to improved sle…

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Honey, I ate the kids: how hunger and hormones make mice aggressive 34:22

2M ago34:22

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00:48 How hunger, hormones and aggression interact in mouse brains Researchers have uncovered the neural mechanisms that underlie an aggressive behaviour in mice prompted by hunger and hormonal state. Virgin female mice can become aggressive towards mouse pups when they are food deprived, but it seems that the relevant amounts of pregnancy hormones…

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Always Come Back to the Why | Alan and Katie Donegan | Ep 569 1:26:49

2M ago1:26:49

1:26:49

Brad, Katie, and Alan Donegan discuss the significance of understanding the "why" behind pursuing financial independence (FI). They delve into their journey, emphasizing the importance of community, intentional spending, and lifestyle design. Listeners are encouraged to confront their fears of rejection when building friendships and to embrace vuln…

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New bird flu vaccine could tackle multiple variants with one shot 22:30

2M ago22:30

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00:46 A multi-variant avian flu vaccine that could enhance pandemic preparedness A vaccine capable of protecting against multiple strains of avian influenza virus might be a step closer, according to new research. The H5 subtype of avian influenza viruses has spilled over into mammals and is particularly concerning to researchers because of the ris…

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The FiiRE Framework With Paula Pant | Ep 568 1:23:56

2M ago1:23:56

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Paula Pant introduces her innovative FI-I-R-E framework, which encompasses Financial Psychology, Increasing Your Income, Investing, Real Estate, and Entrepreneurship. The discussion emphasizes the critical role of financial psychology in shaping one's financial decisions and behaviors. Paula's approach aims to inspire excitement about personal fina…

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How stereotypes shape AI – and what that means for the future of hiring 35:31

2M ago35:31

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00:48 The stereotypes hidden in Internet images Stereotyped assumptions about women’s ages and their perceived job suitability are enhanced by Internet imagery, according to new research. A study of hundreds of thousands of online images shows that women appear younger than men. This stereotype extends to the jobs that people perceive women do, wit…

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Are We Taking the Wrong Risks? With Chris Hutchins | Ep 567 1:16:46

2M ago1:16:46

1:16:46

Brad interviews Chris Hutchins, host of the podcast All The Hacks. They dive deep into challenging the traditional mindset of financial independence (FI), exploring the balance between saving for the future and enjoying life experiences in the present. The discussion revolves around the potential pitfalls of overly conservative financial strategies…

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Ancient viral DNA helps human embryos develop 33:43

2M ago33:43

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00:50 How ancient viruses drive modern human development Research suggests that ancient viral-DNA embedded in the human genome is playing a key role in early embryo development. Around 8% of our genome consists of endogenous retrovirus DNA — the remnants of ancient infections, but knowledge of their activity is limited. Now, a team show that these …

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Risk Based Guardrails for Drawdown | Ep 566 1:25:11

2M ago1:25:11

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Brad welcomes Aubrey Williams, a financial advisor and member of the ChooseFI community. They discuss innovative strategies for financial independence (FI), focusing on flexible withdrawal rates, dynamic spending adjustments using historical analysis, and how adopting a more adaptable mindset can potentially lead to earlier FI. Timestamps & Discuss…

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Audio long read: Autism is on the rise — what’s really behind the increase? 25:36

3M ago25:36

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In April, Robert F. Kennedy Jr held a press conference about rising diagnoses of autism, and said he would soon be announcing a study to find the responsible agent. Although Kennedy said that environmental factors are the main cause of autism, research has shown that genetics plays a bigger part. Also, the rise in prevalence, many researchers say, …

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How a dangerous tick-borne virus sneaks into the brain 32:42

3M ago32:42

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00:48 New insights into tick-borne encephalitis Researchers have identified a key protein that helps tick-borne encephalitis virus enter the brain. In rare cases an infection can lead to serious neurological symptoms, but little was known about how the virus interacts with human cells. Now, a team show that a protein found on the outside of cells p…

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Tax Planning To and Through Early Retirement | Cody Garrett & Sean Mullaney | Ep 565 1:06:30

3M ago1:06:30

1:06:30

Brad Barrett hosts Cody Garrett and Sean Mullaney, co-authors of Tax Planning To and Through Early Retirement, exploring essential tax strategies for the FI community. They address misconceptions about retirement taxes, the drawdown process, and effective tax rates, emphasizing the importance of informed planning to navigate financial independence …

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Apocalypse then: how cataclysms shaped human societies 27:39

3M ago27:39

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Science journalist Lizzie Wade’s first book, Apocalypse: A Transformative Exploration of Humanity's Resilience Through Cataclysmic Events explores some of the cataclysmic events that humans have faced through history. Lizzie joined us to discuss what modern archaeology has revealed about these events, and the role these they’ve have played in shapi…

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This AI tool predicts your risk of 1,000 diseases — by looking at your medical records 35:31

3M ago35:31

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00:50 The AI tool that predicts disease risk Researchers have developed an AI tool that can calculate a person’s risk of developing over 1,000 different diseases, sometimes years in advance. The system, called Delphi-2M, was trained to identify patterns of disease progression using 400,000 people's health records from data repository the UK Biobank…

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Financial Independence Basics with Jackie Cummings Koski | Ep 564 1:09:45

3M ago1:09:45

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Jackie Cummings Koski returns to discuss the fundamental principles of financial independence (FI) and early retirement. The conversation emphasizes the importance of understanding FI—financial independence lets individuals no longer depend on a paycheck, offering options and freedom in life. Jackie shares insights on creating habits, starting smal…

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Detecting gravitational waves 10:21

3M ago10:21

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In 2015, the Laser Interferometer Gravitational Wave Observatory (LIGO) facilities in the US directly detected ripples in space-time, known as gravitational waves. These waves were produced by the final spiral of two orbiting black holes that smashed into each other, sending ripples across the Universe. In this podcast, Benjamin Thompson speaks to …

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Feeling the heat: fossil-fuel producers linked to dozens of heatwaves 36:39

3M ago36:39

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00:45 Attributing extreme heat events to major energy producers Major energy producers increased the likelihood and intensity of heatwaves, according to research published in Nature. Using data from an international disaster database, a team developed a methodology to investigate how much anthropogenic climate change had influenced heatwaves. They …

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Research misconduct: how the scientific community is fighting back 52:13

3M ago52:13

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In 2016, Brian Wansink wrote a blog post that prompted scientific sleuths to investigate his work. They found evidence of data manipulation, and, after several news articles and two investigations by his institution, he would found to have committed misconduct, as defined by Cornell University. His work had been used to inform US policy around food…

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Safe Withdrawal Rates, Drawdown Strategies, RMDs and 50 Year FI Timelines 57:25

3M ago57:25

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ChooseFI unveils a new feature on the website that allows listeners to have their financial independence questions answered by experts. Featuring in-depth discussions with Karsten Jeske (Big Earn) and Fritz Gilbert, the episode explores the ramifications of potentially increasing the safe withdrawal rate and provides critical insights into retireme…

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Nature goes inside the world’s largest ‘mosquito factory’ — here’s the buzz 10:57

3M ago10:57

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Raising mosquitoes to tackle disease might sound like an odd concept, but that’s what a facility in Brazil is aiming to do. Millions of mosquitoes are produced there every week, but these insects carry harmless Wolbachia bacteria that curbs their ability to spread deadly human viruses. Nature reporter Mariana Lenharo visited the facility and told u…

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Two ants, two species, one mother 27:06

3M ago27:06

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00:45 The ant queen that can produce two different species Researchers have made an unusual observation that appears at odds with biology: an ant, known as the Iberian Harvester Ant can produce offspring of two completely different species. Many ants need to mate with other species to produce workers that are a genetic mix of the two, known as hybr…

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Navigating Financial Conflicts in Relationships | Ep 562 1:00:27

3M ago1:00:27

1:00:27

Brad and Ginger discuss the importance of asset flexibility, community building, and health savings accounts (HSAs). The conversation emphasizes maximizing contributions to HSAs while addressing financial conflicts that arise within relationships. Key Topics Discussed: Introduction and Community Building (00:00:00) Ginger shares her growing efforts…

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Audio long read: How to detect consciousness in people, animals and maybe even AI 19:57

3M ago19:57

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The search for signs of consciousness has expanded, thanks to advanced neuroimaging techniques. These tools allow researchers to detect consciousness in unresponsive humans, and now researchers are looking to develop tests that work in animals and perhaps even artificial intelligence systems of the future. This is an audio version of our Feature: H…

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Viral spread: how rumours surged in revolutionary France 24:44

3M ago24:44

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00:48 How the 18th-Century 'Great Fear’ spread across rural France In the late 1700s, rural France was beset with rapidly spreading rumours of aristocratic plots to suppress revolutionary ideas. But how, and why, these rumours were able to spread so quickly has puzzled historians. Now, using modern epidemiological modelling, a team suggests that a …

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Mini-Retirements: Test Driving Financial Independence | Ep 561 50:16

4M ago50:16

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Brad Barrett welcomes Jillian Johnsrud, author of Retire Often, as they delve into the transformative concept of mini retirements. Jillian shares her insights on how taking intentional breaks from work can enrich life experiences, enhance personal growth, and help individuals navigate transitions on their journey towards financial independence. Key…

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Fusion energy gets a boost from cold fusion chemistry 19:57

4M ago19:57

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00:46 Electrochemical fusion Researchers have used electrochemistry to increase the rates of nuclear fusion reactions in a desktop reactor. Fusion energy promises abundant clean energy, but fusion events are rare, hindering progress. Now, inspired by the controversial claim of cold fusion, researchers used electrochemistry to get palladium to absor…

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Living Off the 4% Rule | Marla Taner | Ep 560 1:00:21

4M ago1:00:21

1:00:21

Marla Taner shares her journey of living off the 4% rule since her retirement in 2013. She discusses the financial strategies that have supported her abundant lifestyle, the emotional aspects of transitioning into retirement, and the importance of reassessing fixed costs. Marla's insights provide inspiration for those seeking financial independence…

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Controversial climate report from Trump team galvanizes scientists into action 13:05

4M ago13:05

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In this Podcast Extra, we discuss a report released by the US Department of Energy, which concluded that global warming is “less damaging economically than commonly believed”. However, many researchers say that the report misrepresents decades of climate science. We discuss how scientists are trying to coordinate a unified response amidst concerns …

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Sun-powered flyers could explore the mysterious mesosphere 31:53

4M ago31:53

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00:46 Tiny solar flyer Researchers have used a phenomenon known as thermal transpiration to create a solar-powered flying device that can stay aloft without any moving parts. The diminutive device, just one centimetre across, consists of two thin, perforated membranes that allow air to flow through the device, generating lift. Although only a proof…

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Zero-Based Everything: FI, Travel, and the Art of Starting Fresh | Katie & Alan Donegan | Ep 559 1:20:16

4M ago1:20:16

1:20:16

Join Brad, Katie, and Alan in a candid conversation about financial independence, travel rewards, and lifestyle choices. They discuss the importance of zero-based thinking, share experiences as digital nomads, and challenge conventional views on net worth by introducing the concept of a "freedom fund." Timestamps: 00:03:48 - Zero-Based Thinking Dis…

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Underwater glue shows its sticking power in rubber duck test 28:14

4M ago28:14

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00:45 Researchers develop a new glue and test it on a rubber duck Aided by machine learning, researchers have developed a super-sticky compound that works as an underwater adhesive. Inspired by animals like barnacles, the team developed a new kind of a material called a hydrogel. The material is capable of securely fastening objects together even w…

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Designing an Intentional Life | Tim Ferriss | Ep 558 1:35:41

4M ago1:35:41

1:35:41

Tim Ferriss focusing on financial independence, the importance of mentorship, and the role of playful experimentation in living a fulfilling life. Discover insights on designing an intentional life and the values behind Tim's new game, COYOTE. Key Takeaways Experiential Learning & Game Selection Choose the right projects to engage in rather than ju…