Core Memory

We do not usually do venture capitalists on the Core Memory podcast. They can be a lot and like to hear themselves talk a bit too much. (Not you! The other ones – Ed.)But, for Peter Barrett, we will always make an exception. He’s a general partner at Playground Global and is one of those people who knows an awful lot about an awful lot of things. He is one of my favorite people to listen to and gets my mind racing with tons of new ideas every time we speak. Self-taught, Peter spent the early part of his career as a force of nature in the software industry. He was visited by the Men In Black as a teenager. He helped start Rocket Science Games, which was the hottest video game maker in town before it wasn’t. While there, Peter happened to employ a young intern named Elon Musk. . .Later, Peter would be part of the team that created WebTV and a longtime distinguished engineer at Microsoft, working alongside Bill Gates and Steve Ballmer.These days Peter goes deep on deep tech at Playground. As such, we talk quantum computing, the insane world of AI agents, nuclear power, data centers in space (and why they won’t work) and whether or not humans should be in total panic.The Core Memory podcast is on all major platforms and on our YouTube channel over here. If you enjoy the show, please leave a review and tell your friends.This podcast is sponsored by Brex, the intelligent finance platform built to help companies spend smarter and move faster.We run on Brex and so should you. Learn more about Brex right here.The podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

The center of the universe has been born again. The most insufferable posters on our timeline, including myself, are enjoying the abundance found in San Francisco thanks to the AI boom lining the pockets of fresh college dropouts. The themed parties are bumping, the LLMs look good, the La Croix is flowing. There is much doom in this world, but not in this podcast.On this episode of the Core Memory podcast, we’re joined by Jayden Clark. He’s the host of Members of Technical Staff, a podcast about niche San Francisco tech culture. He’s been featured in the New Yorker, The New York Times, and Business Insider. We discuss all the important parts of life in this new version of San Francisco: themed parties, online discourse, and the permanent underclass.The Core Memory podcast is on all major platforms and on our YouTube channel over here. If you enjoy the show, please leave a review and tell your friends.This podcast is sponsored by Brex, the intelligent finance platform built to help companies spend smarter and move faster.We run on Brex and so should you. Learn more about Brex right here.The podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Let’s get right to the point: Nobel Prize winner Jennifer Doudna is on the pod this week.Doudna won the 2020 Nobel Prize in Chemistry alongside Emmanuelle Charpentier for their work developing “a method for high-precision genome editing.” They, and others, helped usher in the CRISPR revolution with people getting very, very excited about the prospects of editing genes in humans, animals, and plants with more precision and ease.There have been some massive recent CRISPR wins. Casgevy, which treats sickle cell disease, emerged as the first FDA-approved CRISPR therapy. And, last year, an infant in Pennsylvania had a rare disease treated with record-breaking speed via CRISPR technology.That said, CRISPR has, in many ways, not lived up to the hope and hype just yet. CRISPR therapies remain expensive and tough to distribute throughout the body.Doudna is convinced that several major CRISPR breakthroughs are upon us, and we get into where she sees the field going. We discuss the work she’s doing at start-ups and the Innovative Genomics Institute – a research powerhouse that links UC Berkeley, UC San Francisco, and UC Davis.And we talk about Pomona College, our shared alma mater, rejecting our wonderful, brilliant children who will no doubt go on to do amazing things in the world and likely make untold billions that will be donated to other tremendous institutions. JK. Chirp, chirp!If you want to get up to speed on gene editing’s present and future, you will not find a better discussion.The Core Memory podcast is on all major platforms and on our YouTube channel over here. If you enjoy the show, please leave a review and tell your friends.This podcast is sponsored by Brex, the intelligent finance platform built to help companies spend smarter and move faster.We run on Brex and so should you. Learn more about Brex right here.The podcast is also made possible by E1 Ventures, which backs the most ambitious founders (probably some peptide users) and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

On January 5th, famed AI researcher Jerry Tworek stunned world+dog by announcing his departure from OpenAI. A few days later, he hopped over to the Core Memory podcast studio for his not-so-formal exit interview.Tworek joined OpenAI in 2019 when the research lab was a research lab and had about thirty employees. He went on to work on many of OpenAI’s most consequential products, including the company’s reasoning technology, which ushered in a new era for the entire AI field. (Yes, Tworek worked on Q* before it was Strawberry before it was o1.)Both Kylie and I have been longtime Tworek fans. He’s smart, funny and never really sought the limelight despite his massive contributions.In the episode, Tworek reveals that he found it hard to keep doing high-risk, pioneering work at OpenAI as the company shifted toward what Tworek describes as more conservative ways. He, in fact, thinks the large AI companies have become conservative as a whole and that there might be bigger, better ideas to be found elsewhere. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Biohacking has gone through a lot of different phases. Implanting an NFC chip in your hand is old school and having a blood boy is passé. Among Silicon Valley’s 20-somethings, all the cool kids have a peptide stack. Jasmine Sun joins us this week to chat about all things peptides. She was previously a product manager at Substack, but now she writes about San Francisco culture on her own Substack. Jasmine recently published a deep dive in The New York Times about the trendy injectable and deets on the Chinese peptide rave (which you first read about from our new writer, Kylie Robison, last month).If you want to be like Wolverine, don’t do drugs. Subscribe to our newsletter and podcast instead. Our words are made of adamantium.Do you feel old yet? We do. In this episode, we get into all the important bits: What are peptides, why are they Chinese, and how is RFK Jr. involved? This is not medical advice, but if you do inject some peptides after this episode, tag us.The Core Memory podcast is on all major platforms and on our YouTube channel over here. If you enjoy the show, please leave a review and tell your friends.Our show is sponsored by Brex. It builds finance tech that makes expensing and accounting for things like peptides super easy, if your company is cool with such things. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders (probably some peptide users) and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

We have a guest host and some breaking news for this episode.Eryney Marrogi, the scientist and soon-to-be doctor who writes for us now and again, has taken over the pod studio to interview Richard Fuisz. Earlier today, Marrogi broke a story on Fuisz’s company Nonfiction Labs, which has developed technology that could make it possible to use magnets to better control how cancer therapies are doled out in the body.The two big brains get into Nonfiction’s technology and into Fuisz’s rather prolific work at the cutting-edge of the biotech field. The conversation goes into how biotech actually gets built, competition with China and Fuisz’s family legacy of invention (his grandfather was the prolific inventor featured in “Bad Blood”).The Core Memory podcast is on all major platforms and on our YouTube channel over here. If you enjoy the show, please leave a review and tell your friends. Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

We have been talking about computer-aided drug discovery for well more than a decade. It used to be the case that start-ups pitched their ability to use “machine learning” to hunt for new, promising therapies. Now we call machine learning “artificial intelligence” and have a new class of start-ups claiming big science breakthroughs.One of these new wave start-ups is Chai Discovery and its founders Josh Meier and Jack Dent join the podcast this week. (The Core Memory podcast is available on all major platforms and on our YouTube pod channel.) The company was founded in 2024 and is backed by OpenAI, Menlo Ventures+Anthropic, Thrive and others. (Chai is already a unicorn.) It published a number of notable accomplishments this last year, including using its own AI model to churn out promising antibody designs at an unprecedented clip.The first couple iterations of machine learning-aided drug discovery companies came and went without tremendous success. Chai and Nabla Bio are two of the buzziest members of this new era of AI companies. Their models really do seem to be harnessing the advances in AI to hit on potential drug targets and designs in rather profound ways. Bio-tech, in fact, seems like the place where AI may make the most stunning scientific advances first.In this episode, we get into Chai’s intellectual roots as a research project within Facebook/Meta and how the company has gone after building its models. We also try to provide a realistic picture of the current state of AI drug discovery.The implications of the work done by Chai, Nabla and others are far reaching. If we’re able to come up with new drug designs at this accelerated rate, we will need major changes around how drugs are tested and put through trials. The current drug testing and FDA approval system is simply not set up to move as quickly as bio-tech appears to be going.This will be our last episode for the year, and we’re taking a tiny break between posting the next one as the Core Memory crew has a little time off. Thank you so, so much to all of you who have listened to the show in our first year. We hope you’ve enjoyed it and learned some things along the way.Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Well, here we are. It’s brain uploading time.As we’ve just reported, famed neuroscientist Sebastian Seung has created a new start-up called Memazing. The company has set out to build digital brains in software that are based upon the maps of animal brains. Memazing is, in effect, seeking to reverse engineer how animal brains work and to use this information to bring to life a new form of computerized intelligence.This work could lead to, say, more energy efficient AI systems that are modeled on real brains. It could help with aligning AI systems with human intelligence. And it could be a major step toward creating emulations of full human brains and perhaps, one day, making minds uploadable.We get into all of this with Seung on this week’s podcast. We also explore his decades of neuroscience work dedicated to building connectomes, or ultra-detailed schematics of animal brains and all their neurons and synapses.Seung is brilliant and fascinating. Listen and/or watch for yourself.The Core Memory podcast is available on all major platforms and our YouTube channel. Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Jake Becraft was working on mRNA way before it was cool.In fact, Becraft’s advisors at MIT told him trying to develop therapies with mRNA would be a colossal waste of time. But, here we are in 2025, and Becraft has pushed the mRNA technology that gained so much attention during the pandemic in rather incredible new directions.Becraft joins the podcast this week to talk about his company Strand Therapeutics and its programmable mRNA technology. Strand has developed a way to send therapies into the body and have them aim right for diseased cells. Its first clinical trial has focused on melanoma where Strand has been able to treat patients who were deemed incurable with any other medicines.Jake and I met up at Strand’s headquarters in Boston with a double-helix hanging over our heads. We covered Strand’s work, Jake’s background and the future of synthetic biology.We’ll have a video episode coming on Strand and its lab and technology soon on our YouTube channel, which you should be subscribing to because it’s awesome.Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

America has a new steel company, which is sort of a weird thing to write in 2025.It’s called Hertha Metals, and it’s based in Houston. It’s also run by a woman named Laureen Meroueh, who is this week’s guest. As far as we can tell, Meroueh stands out as the first female to start and run a steel producer.Meroueh grew up as something of a child prodigy in Florida and went on to earn a PhD in mechanical engineering from MIT. She then invented some of the processes that make Hertha different from traditional steel producers.Hertha relies on natural gas and hydrogen instead of coal to make high-grade steel. Its process is potentially cleaner, simpler and cheaper than the approaches used by the traditional steelmakers that have been around for more than 150 years. The start-up is already producing one ton of steel per day and is now looking to prove that it can make much, much more and compete head-to-head against the major steel players.In this episode, we get into how Hertha’s process works, the steel industry overall, why the U.S. needs this type of technology and how Meroueh ended up as a steel magnate.Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

One must not feel sorry for Mark Chen. He gets paid very well to work in one of the most exciting fields imaginable.That said, as OpenAI’s Chief Research Officer, he has the difficult job of picking the company’s research priorities and of dealing with OpenAI’s employees begging him for more, more, more GPUs to power their work. This is a hectic gig, and, if you believe that AI will do all the things that AI companies promise it will do, then an awful lot of pressure and expectation is on Chen’s shoulders.We recently spent almost two hours with Chen talking about his job, his background and his fierce competitive streak. (I’ve seen the man play poker. He takes it very seriously. He’s also proven willing to counter Mark Zuckerberg’s personal soup deliveries to AI researchers in order to court and retain talent.) And, of course, we got into the future of AI.This conversation took place just a couple of days after Google released Gemini 3, and we spent some time on how OpenAI plans to counter this new, powerful model.We think you’ll get to learn a lot more about Chen’s personality and motivations in this episode. Enjoy!Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Pablos Holman has one of the most-watched TED Talks of all time, and that’s sort of the least interesting thing about him.For the past 30 years or so, Holman has been traveling amid the most inventive and eccentric tech circles. He grew up in the wilds of Alaska and turned into a hacker extraordinaire. He helped start the rocket company Blue Origin with Jeff Bezos and sci-fi author Neal Stephenson. And he helped Bill Gates, Nathan Myhrvold, and Edward Jung create an invention factory at Intellectual Ventures.If you like our stories, videos and podcasts, please do subscribe. All of this stuff takes a team to produce, and we could use your support.These days, Holman is running a venture capital firm that scours the world for the biggest ideas from wild-eyed inventors missed by others. He published a book this year that captures some of his thoughts on invention and where our civilization is heading.In this episode, we dive into the book, Holman’s bizarre career and the future of science and research and development. I think you will be surprised and entertained.Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

In December of 2024, the Chinese start-up DeepSeek shocked the world with the release of an AI model that appeared much cheaper to make and run than those from its American rivals. The company also open sourced its AI, meaning it released the blueprints of its model to the public.Our guest this week is Misha Laskin. His start-up Reflection AI looks to be the prime counterweight to DeepSeek and a host of other open source Chinese models. Laskin argues that open source models can be just as good as the models developed by the likes of OpenAI, Google and Anthropic and that the West needs this to be the case.Reflection has raised $2 billion and is valued at $8 billion, although the figures in AI have become so lofty as to almost feel meaningless at this point. That said, the company was able to raise so much money because of the pedigree of its team with a number of engineers, like Laskin, coming from DeepMind.I have, in full confession, not been paying enough attention to open source models and the ways in which the Chinese models seem to have become the basis for a lot of corporate work in the US. Laskin dug in deep on this topic, and hopefully you’ll feel more up to speed after listening to the episode.You can find the Core Memory podcast on all major platforms and on our YouTube channel. Enjoy!Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Well, I wrote a book and made a movie about this week’s guest, so he must be fascinating. (Otherwise, I wasted six years of my life.)Will Marshall has done things beyond supplying me with material. He’s the co-founder and CEO of Planet Labs. For those who don’t know, Planet changed the aerospace industry forever by lowering the cost of satellites and proving that they could be mass produced. It has surrounded the Earth with hundreds of satellites that photograph and analyze all our planet’s landmass every day.Go on. Sign up. We bring you these people for free. Help us, help you. In this episode, we get into Planet’s history, what these satellites do and why they’re so important.Marshall is a deep thinker on many areas and has lived in an unconventional manner. So we also get into much, much more, including the communal house scene in the Bay Area, what Marshall sees as the three major shifts that will occur over the next decade and how he balances his idealism with being a capitalist.In conclusion, Marshall is fascinating. I did not waste six years of my life. And When The Heavens Went on Sale makes for a great Christmas present.Seriously. Let’s make the world smarter.Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Over the past week or so, Elon Musk has started hyping up the launch of the long-, long-awaited Tesla Roadster 2.Musk appeared on the Joe Rogan podcast last week and said he hoped to unveil the car before the end of the year. (When it goes on sale is another story.) He suggested the car might fly. (Okay?) And he said that it would almost certainly be the most memorable launch of any product in history. Which is a very Musk thing to say and - also in keeping with Musk - possibly true.At the Tesla shareholder meeting today, Musk again promised to wow with the Roadster 2 unveiling. This promise came in response to a shareholder who asked if he could, in fact, have the first Roadster 2 VIN. “Well, I guess it’s according to whoever put down their deposit in that sequence,” Musk said.Well, we are here with a special podcast to reveal exactly who stands to get the first Roadster 2 off the line – the investor Konstantin Othmer.I ran into Othmer rather by coincidence this week, and he happened to be holding the receipts that show he wrote the first Roadster 2 check for $200,000 back in 2013.This episode has some wonderful early Musk and Tesla tales plus the whole Roadster 2 backstory. Enjoy!Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Joshua Steinman spent four years (2017-2021) working for President Trump and had a very broad remit. He shaped all cyber, telecommunications, cryptocurrency, and supply chain policy.It’s fair to say the Washington press corps did not adore Steinman. He was often portrayed as a young, brash Silicon Valley-type who bubbled over with ambition and lacked the usual political decorum.Despite how the press corps felt, Steinman did important work on several fronts. Before and during his time in Washington, he helped create deeper ties between the U.S. military and Silicon Valley in a bid to modernize the technology at the Defense Department’s disposal. He also sounded repeated alarms about how vulnerable the U.S. infrastructure is to cyber attacks, particularly those originating in China.These days Steinman runs Galvanick, a company aimed at hardening the technology infrastructure of industrial companies and operations.Steinman is opinionated and then some. In this episode, he will claim that Trump is among the smartest humans on Planet Earth. Some of you will be okay with this. Some of you will hate this. I look forward to your comments.Beyond Trump, we get into Steinman’s unusual career, the state of U.S. military technology and security, the cyber Cold War between the U.S. and China and a host of other light topics. Enjoy!The Core Memory podcast is available on all major platforms, including Apple, Spotify and YouTube. Our show is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Celine Halioua and her company Loyal are on track to deliver a drug next year that could help dogs live longer.Loyal’s therapy is aimed at senior dogs (10+ years of age) that weigh more than 14 pounds. It’s a pill that the dogs will take daily and that’s designed to extend the dogs’ lifespan by at least a year. To get to this point, Loyal conducted a massive clinical trial with 1,300 dogs, and the FDA has liked what it’s seen so far.Halioua joins the podcast this week to chat about her unique approach to cracking the longevity field.Loyal has been betting that it will be easier to prove that longevity drugs work (and get regulators on board) by starting with dogs instead of humans. The company has been testing promising longevity compounds and now has three therapies in its drug pipeline aimed at our canine friends.I’ve known Halioua for several years now. She’s one of the deepest, most pragmatic thinkers in the longevity field and approaches her work without the hype and false promises that often accompany some of our live forever gurus.We get into her life, her work, some of the oddities of running a company in San Francisco and what it’s like to be in bio-tech during the great AI hype era.Enjoy!The Core Memory podcast is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

We know that there are trillions of dollars’ worth of minerals sitting on the ocean floor. The big question is whether humans should start hoovering them up.Our guest this week is very much Pro Hoover. He’s Gerard Barron, the head of The Metals Company, which has spent years preparing to become a major player in the seabed mining industry. The company has found a spot in the Pacific Ocean that’s full of black, baseball-sized nodules rich in nickel, copper, cobalt, and manganese. In short order, The Metals Company plans to send vehicles down to gather the nodules up and then refine them.We work hard to bring you these guests. Please subscribe and help support Core Memory. Thanks!The pro case here is that the nodules are quite literally sitting atop the ocean floor. You don’t need to burrow into the seabed and wreak the usual environmental havoc associated with mining. You don’t need people laboring under dire conditions. And these nodules are so mineral rich that you don’t need the typical amounts of refining to get at the good stuff.The con case is that we don’t know a ton about what goes on down there on the ocean floor in terms of animal life. Us humans could be triggering yet another environmental catastrophe on our way to harvesting what we desire.Barron is well aware of the criticisms against seabed mining. John Oliver, among others, has gone hard at him and The Metals Company. And Greenpeace thinks Barron might be Satan.Meanwhile, the U.S. very much wants to become a seabed mining power, as it attempts to blunt China’s dominance in critical minerals and rare earths. And, of course, the modern world depends on things like nickel, copper, cobalt, and manganese, and seabed mining looks like a very efficient way to get more of them.We get into the pros and cons of this new field in gory detail on the pod. Some of you will be satisfied with Barron’s philosophy. Some of you won’t. In either case, you’ll come away better educated on the history of this industry and the technology driving it.Enjoy!The Core Memory podcast is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

Jed McCaleb grew up in Arkansas where he lived in a cabin in the woods that had no electricity or running water. Now, he’s a billionaire building a space station and funding some of the world’s most adventurous science.America remains a thing, I guess.McCaleb, 50, has been at the center of several major technology movements. Back in the peer-to-peer glory days, he released the eDonkey application for music and file-swapping and had the pleasure of being sued by the major record labels. Then, in 2010, he launched the Mt. Gox bitcoin exchange, which dominated the crypto world until it turned into a story of mega woe.A couple of years later, McCaleb developed the Ripple protocol before moving on to build yet more crypto innovations. This work made McCaleb fabulously well-to-do. (He’s worth $3 billion . . . if you believe Forbes.)McCaleb has used his fortune to back a number of start-ups and philanthropic endeavors. When Elon Musk pulled out of supporting OpenAI, McCaleb helped backfill the financial vacuum. He’s also been a major investor in Max Hodak’s Science Corp., which is developing brain computer interface technology and in the rocket maker Firefly Aerospace.McCaleb’s real blockbuster investment is Vast Space. The start-up is building a commercial space station designed to be the successor to the International Space Station, which is very much on its last legs. McCaleb says he’s prepared to put $1 billion of his fortune into Vast to make sure it happens.My conversation with McCaleb travels across these various tech eras. He comes off, at least to me, as an oddly down-to-Earth guy for someone who invests in such a variety of wild ideas.Enjoy!The Core Memory podcast is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe

We have a proper treat this week. Core Memory special correspondent Eryney Marrogi comes on the pod.Marrogi is a scientist and soon-to-be doctor who has followed the rise of the gene editing tools at humanity’s disposal. He wrote a piece for us a couple of months ago on “Baby KJ,” the child who received a customized, life-saving gene therapy in record time. Now we get into what Baby KJ means for the future of gene therapies.The gene therapy field is advancing quickly but remains costly and technically complex. Marrogi breaks down how hopeful people should be – or not – that new techniques can be applied to more than super rare, single gene problems.We also get into the ups and downs of the DIY Bio movement, Marrogi’s work creating gene-edited mosquitoes and the vaping crisis he sees with America’s youth, who are taking in unfathomable levels of nicotine.Enjoy!The Core Memory podcast is sponsored by Brex, the intelligent finance platform. Like thousands of ambitious, innovative companies, we run on Brex so we can spend smarter and move faster. And you can too. Learn more at www.brex.com/corememoryThe podcast is also made possible by E1 Ventures, which backs the most ambitious founders and start-ups. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.corememory.com/subscribe