Mark Cuban: The Brutal Truth About The Next Market Crash!

The Diary Of A CEO The Diary Of A CEO • Oct 26, 2026

Audio Brief

Show transcript
Mark Cuban warns that artificial intelligence data centers could soon turn into empty buildings like pickleball courts, and that the tech giants borrowing tens of billions of dollars to build them risk triggering a United States debt bubble. On Steven Bartlett's show, released on October 26, 2026, Cuban explains how he built his wealth from humble beginnings. Why mastering sales matters from day one. Driven to earn money at age twelve to buy basketball shoes, Cuban bought boxes of garbage bags for three dollars and sold them door to door for six. Why you should ditch passion for relentless preparation. Cuban rejects following your passion, noting his passion for basketball never helped him, and instead spent up to twenty eight straight hours reading software manuals so only the software's creator understood the program better than he did. That lack of preparation is growing worse because of how social media algorithms feed young people get rich quick schemes. He claims that social media algorithms and a 1996 law called Section 230, which protects online platforms from liability for user content and algorithms, hold kids back by pushing dropshipping and shoe drops instead of the preparatory work required to win. How to use artificial intelligence without falling for the hype. Cuban states that artificial intelligence dwarfs every other technology from his time in tech, yet he hedges that his past experience watching computers get incrementally faster might prejudice him and hold him back on this topic. Because they do not know the consequences of their actions like a toddler dropping a sippy cup does, Cuban would trust a seeing eye dog at an intersection over the best phone video model. That massive electricity demand is also fueling a dangerous financial bubble. With the United States paying one trillion dollars a year in debt interest and tech giants competing for loans over forty billion dollars to build data centers, Cuban hedges that he is not enough of a financial expert to know what gets crowded out, only that something will give. How investing in people turned the worst team in sports into champions. After buying the Dallas Mavericks in 2000 for two hundred eighty five million dollars, Cuban found they spent more on computer training than player development. He hired former players for one on one coaching, bought a team plane, and hired a statistics professor he saw on Jeopardy as the league's first full time analytics person, lifting their win rate from thirty nine percent to almost sixty percent and winning the 2011 championship. Why kindness and self awareness beat ruthless leadership. Cuban learned from his partner Todd Wagner that yelling made employees afraid, and because his sales instinct makes him want to fix weak job candidates, he relies on detail oriented partners to hire slowly and fire fast. Now acutely aware of his mortality at age sixty seven or sixty eight after losing his parents, Cuban goes door to door to chief executives with his company Cost Plus Drugs to disrupt the three conglomerates dominating healthcare. Wealth never changes who you are, and true business success comes from doing the unglamorous homework nobody else wants to do. Everybody has got the will to win. But it is only those with the will to prepare that actually do win.

Episode Overview

  • Mark Cuban tells Steven Bartlett how he built his wealth from humble beginnings, why he believes artificial intelligence is overhyped despite its massive utility, and how he is tackling the US healthcare system while prioritizing family life.
  • The conversation traces Cuban's early hustles and blue-collar upbringing through the creation and sale of MicroSolutions and Broadcast.com, demystifying the unglamorous preparation required to succeed in business.
  • Cuban breaks down the mechanics of the current AI boom, distinguishing between practical agent workflows and the financial dangers of debt-fueled data centers and meme-stock valuations.
  • The narrative shifts to personal reflections on fame, leadership, mortality, and his tenure with the Dallas Mavericks, illustrating why money does not change a person's core happiness and why Cuban now focuses on disrupting healthcare.

Key Concepts

  • Episode Disclosures and Business Ties: Mark Cuban is a former investor on Shark Tank, the former majority owner and current 27% minority owner of the Dallas Mavericks, an investor in a silent disco company, and the co-founder of Cost Plus Drugs (costplusdrugs.com), which he praises during the episode. Episode sponsors read by Steven Bartlett include Cometeer (coffee capsules, in which Bartlett notes he is also an investor), T-Mobile (Super Broadband business internet integrating 5G and Starlink), and LinkedIn Ads (B2B advertising platform).
  • Early Hustles and the Power of Sales: Cuban's mother was 20 years old when he was born, and his father did car upholstery, never made more than $40,000 in his life, and lost an eye when a staple broke while doing upholstery when Cuban was in 6th grade. In high school, Cuban was 4 inches shorter, 25 pounds heavier, and had two front teeth capped with steel after running into a bicycle at age 16 because his parents could not afford better caps. Driven to earn money at age 9 or 10, Cuban bought packs of baseball cards at a pharmacy with his allowance for about a quarter, repackaged them in comic paper, and sold them for 50 cents with a guarantee of getting a Pittsburgh Pirate like Roberto Clemente or Willie Stargell. At age 12, wanting basketball shoes, his father's friend sold him boxes of garbage bags for $3 a box, which Cuban sold door-to-door for $6. Cuban explains that no business succeeds without sales, and good sales is about caring, knowing your product, and helping people achieve their goals rather than convincing them to act against their interest.
  • Preparation Over Passion and the Real American Dream: At age 22 in Dallas, Cuban lived in a 3-bedroom apartment with 5 roommates (6 guys total), did not have his own bedroom, and slept on the floor. After 9 months at a retail software store, he was fired for leaving the store (while someone covered for him) to pick up a check that would earn him a $1,500 commission. He founded MicroSolutions in 1983 (hitting a major milestone at 9 months with $15,000 in accounts receivable, which let him move out of the apartment), kept it profitable every single month of its 8-year existence, and sold it in 1990 at around age 31 or 32 for $5 million, netting $2 million. After the sale, he bought a lifetime pass on American Airlines and took off his watch, vowing never to wear one again so he would not be on anyone else's time (he only wears an Apple Watch now for health data). Later, at age 37, he started Broadcast.com (AudioNet) and sold it 4 years later to Yahoo for $5.7 billion in stock, giving him a paper net worth of $1.5 to $1.7 billion. Cuban argues that two major misconceptions among young entrepreneurs are believing you must raise money and prioritizing big sales numbers over profitability. He notes that the real "American Dream" (unlike the "Silicon Valley Dream") isn't necessarily becoming a billionaire, as the greatest number of successful people make $5 million, $10 million, $20 million, $25 million, $50 million, or $100 million. He also rejects the idea of following "passion" (noting his passion for baseball and basketball didn't help him); instead, you become great at where you spend your time. When learning software like Lotus 1-2-3, he spent 25 to 28 straight hours reading manuals and writing software so that only the software's creator understood it better than him, with everyone else tied for second.
  • Algorithmic Distractions and Societal Rebellion: Cuban references a book he read in high school called Why Men Rebel, which argues that a gap between high aspirations and low real-life circumstances causes people to rebel and join counter-societal groups. Today, he claims that Section 230 (a 1996 US law protecting online platforms from liability for user content and algorithms) and social media algorithms hold kids back by feeding them get-rich-quick schemes (like dropshipping, shoe drops, or water blasters) instead of showing the preparatory work required to win, echoing coach Bobby Knight's philosophy on preparation.
  • The Mechanics and Limits of AI: While Cuban states that AI dwarfs every other technology in aggregate from his time in tech, he insists that AI is "book smart" rather than truly intelligent. Unlike early mainframes that had less than 1/100th the power of a modern phone and required human brilliance to program on Fortran punch cards, AI relies on statistical brute force, using more GPUs and electricity than existed in human history prior to last year. Cuban hedges that his past experience watching computers get incrementally faster might prejudice him and hold him back on this topic. However, he argues that AI models (Anthropic, Google Gemini, ChatGPT/OpenAI, Grok) are immediately out of date upon release, are predictive rather than deterministic, yield 4 different answers across 4 AIs or with slight prompt changes, lack inherent ethics, do not know the consequences of their actions, and suffer from latency. For example, a 2-year-old in a high chair knows pushing a sippy cup off will make mom come running, and at a 4-way intersection Cuban would trust a seeing-eye dog over the best AI video model on a phone. Based on conversations with security experts, he also notes AI has not invented new hacking methods, but uses brute force by running unlimited agents through existing vulnerability lists (which can also be used for defense). While he calls Elon Musk the best entrepreneur of our lifetime, he notes Musk is a "sales guy" who makes grand forecasts about AI and humanoid robots to raise money. As AI dominates, Cuban predicts people will rebel against data centers, form tech-free communes and kibbutzes (leading him to invest in a silent disco company that promotes face-to-face communication), and use adversarial actions to trick self-driving cars and AI.
  • Meme Stocks, Circular Financing, and the AI Debt Bubble: Citing Charlie Munger and Warren Buffett on delayed gratification, Cuban notes that while he bought stocks during the COVID bear market and "crushed it," he now holds cash because we are in a market bubble. Unlike the 2000 to 2001 internet bubble, today everything is a meme stock (including Bitcoin, Micron, Google, and Apple) trading on perceived value like baseball cards rather than intrinsic value or net present value of future cash flows, where missing or beating earnings by 1 penny can cause an 18% stock drop. Cuban admits he has no idea what will cause the bubble to burst or which AI company (like Anthropic or OpenAI) will survive, and hedges on his defensive investing strategy that he might lose a little bit because he is not as protected as he should have been, but wants to give it time to see how things play out. Furthermore, he warns that many current AI data centers could metaphorically turn into "pickleball courts" (empty, repurposed buildings) because true AI breakthroughs will require less power doing more, not more power. Meanwhile, Nvidia and Jensen Huang are "basically subsidizing half the industry" via circular financing, and Meta is borrowing more than its cash flow by a factor. With the US paying $1 trillion a year in interest on its national debt and the 10-year treasury around 5.2%, if rates rise to 6%, 8%, or 10% while hyperscalers compete for $40 billion+ loans, borrowers will be crowded out. Cuban hedges that he is not enough of a financial expert to know what gets crowded out, only that something will give, and cites Ray Dalio's warning (supported by an archival clip of Dalio) that the US and UK are in the "decline" phase of the empire cycle due to over-indebtedness and printing money, risking currency devaluation.
  • Transforming the Dallas Mavericks: On January 20, 2000, Cuban bought the Dallas Mavericks for $285 million after they were voted the worst professional sports franchise of the previous decade. At the time, they had 1 head coach and 3 assistant coaches, spent more on computer training than player development for players making over $1 million, and had a season record of 9 wins and 23 losses. Cuban hired former players for 1-on-1 development, bought a team plane so tall players like 7'6" Shawn Bradley wouldn't sit in cramped commercial seats at 3:00 AM (and told players to spread a fake rumor that the plane had a weight room and steam room to mess with rival teams), and saw the team go 31 wins and 19 losses over the remaining 50 games. Six months after buying the team, Cuban saw Wayne Winston (whose MBA statistics class Cuban had snuck into at age 18 at Indiana University) on Jeopardy, reconnected with him at a Pacers game in Indianapolis, and hired him on the spot as the NBA's first full-time analytics person. Under Cuban, the Mavericks had the second-highest regular-season winning percentage in the NBA (improving from a 39% win rate to almost 60%), made their first Finals in 2006, and won the NBA Championship on June 12, 2011 (Game 6 against Miami) when Cuban was 53, drawing 500,000 to 1,000,000 people to downtown Dallas in 100-degree heat for the parade. In 2023, Cuban sold the majority stake for $4.3 billion while retaining 27% because the NBA shifted from basketball to team valuations and real estate, creating stress, and he wanted to spend time with his three kids (who were ages 13, 16, and 19 at the time of the sale, and are currently ages 17, 20, and 23).
  • Leadership, Family, Mortality, and Healthcare Disruption: Cuban emphasizes that not everyone should be an entrepreneur (if you have to ask, you probably aren't), and that founders in companies under 100 people actually have less control over their lives than employees because they are beholden to customers and staff. He also learned you do not have to be ruthless: at MicroSolutions he used to yell and scream until his Broadcast.com partner Todd Wagner told him people were afraid of him and it was counterproductive. Admitting he sucks at details and hiring (because his sales instinct makes him want to "fix" weak candidates), Cuban relied on detail-oriented partners—Martin Woodall at MicroSolutions, Todd Wagner at Broadcast.com, and Dr. Alex Oshmyansky at Cost Plus Drugs—to hire slowly and fire fast. Personally, Cuban notes that money doesn't change who you are, and being a celebrity (especially when Shark Tank peaked after the 2011 championship) was much harder than being rich because of the attention. As the oldest of three brothers (2.5 years older than Brian, 6 years older than Jeff), his fame put unfair pressure on his brothers in Dallas; Cuban reads a letter from Brian recalling how in July 2005 Brian wanted to end his life, and Mark and Jeff saved him by putting him in rehab (Brian has been sober ever since). Cuban met his wife Tiffany at a gym in his late 30s and married her in 2002 at age 44. After his parents passed away in 2017 and 2022 (his father lived to 92 and his mother to 85), Cuban became acutely aware of his own mortality at age 67/68. Today, his mission with Cost Plus Drugs is fixing US healthcare, where three big companies dominate with hundreds of billions in sales. Because 67% of people with employer health insurance work for self-insured employers (who pay the actual medical bills), Cuban goes door-to-door to CEOs to get them to ditch the big conglomerates.

Quotes

  • At 0:02:42 - "To me, business is like a sport. And if you don't keep on getting better and improving your game, you're not going to be able to compete." - framing entrepreneurship as a continuous competitive discipline.
  • At 0:06:09 - "If you can go door to door and sell, you can do anything." - explaining how early rejection in door-to-door sales or call centers builds lifelong resilience and career security.
  • At 0:06:46 - "No business has ever succeeded without sales." - emphasizing that revenue generation and helping customers solve problems is the foundation of every enterprise.
  • At 0:11:30 - "To be a millionaire, I think you've just got to be really good at something. And then find a way to turn that something into a business." - advising aspiring founders to master a single skill rather than juggling multiple business ideas at once.
  • At 0:12:45 - "People think it's about passion. 'Oh, I'm passionate.' I was passionate to be a baseball player, basketball player. Didn't help me at all, right? And I think when you realize where you're spending your time is where you find things that you like to do." - debunking the "follow your passion" trope in favor of observing where you naturally invest your time and effort.
  • At 0:16:46 - "How do you define success? Waking up in the morning with a smile on your face, excited about the day." - sharing his ultimate metric for personal fulfillment beyond net worth.
  • At 0:19:07 - "Don't go get the best job because that's the hardest to find. Don't get the perfect job because those are hard to find. Just get a job. And when you have a job, just work to be really good at it." - offering pragmatic advice to new graduates and people living paycheck-to-paycheck.
  • At 0:24:04 - "In my mind, when it came to software, there was only going to be one person who understood any given software better than me, and that would be the person who wrote it." - illustrating the extreme level of preparation he used to out-compete rivals at MicroSolutions.
  • At 0:27:15 - "Everybody's got the will to win. But it's only those with the will to prepare that actually do win." - quoting coach Bobby Knight to highlight why unglamorous preparation separates winners from dreamers.
  • At 0:31:24 - "Everything's a meme stock. Bitcoin is a meme stock, right? Pick Micron, you know, pick Google, Apple, they're meme stocks." - arguing that modern assets trade on perceived, baseball-card-like value rather than intrinsic cash flows.
  • At 0:33:28 - "AI is not smart. It just knows how to use statistics, basically, to predict the next word. It's predictive, it's not deterministic." - clarifying the technical limitations of large language models despite their massive computing power.
  • At 0:52:44 - "We literally could get into a debt bubble in the United States of America because there's so much debt being taken out by all these, you know, hyperscalers." - warning about the macroeconomic risks of tech giants borrowing tens of billions of dollars to build data centers.
  • At 1:01:07 - "Swag isn't how you dress. Swag is being able to tell somebody else how they dress." - reflecting on the personal freedom and autonomy he gained after selling his first company.
  • At 1:02:45 - "If you're miserable when you're poor, good chance you're going to be miserable when you're rich. Money can't change who you are." - explaining that wealth amplifies existing traits rather than curing internal unhappiness.
  • At 1:03:36 - "And I found that I got a lot further by being nice than by being a dick." - recounting how his partner Todd Wagner helped him realize that yelling at employees was counterproductive.

Takeaways

  • Stop waiting for the "perfect" job or business idea: If you are starting out or living paycheck-to-paycheck with $1,000 in savings, get any available job, be brutally honest with yourself about your performance, and spend 2 to 3 years mastering the role so your employer gives you a glowing reference.
  • Track your time instead of chasing passion: Audit where you naturally spend your hours, commit to reading the manuals and doing the unglamorous prep work in that domain, and aim to know the tools better than anyone except the person who created them.
  • Prioritize profitability over raising capital: Resist the Silicon Valley trap of chasing venture funding and vanity revenue numbers; build your business to be profitable from month one so you retain full control of your destiny.
  • Build foundational sales skills: Practice door-to-door selling or call-center objection handling, focusing on deeply understanding your product and genuinely helping customers achieve their goals rather than pressuring them.
  • Deploy AI agents for tedious intern-level work: Use 20+ AI agents daily (such as Claude, Grok-bot, or Co-work) to automate repetitive tasks—like monitoring lawsuits, tracking contract bids, and drafting Open Records Act emails—to free up hours for deep reading and strategy.
  • Protect proprietary research from AI scrapers: If you work in a hospital, research institution, or specialized business, avoid publishing or patenting every breakthrough where public AI models can immediately scrape it; instead, utilize trade secrets and private models to retain control of your intellectual property.
  • Partner to cover your blind spots in operations and hiring: Be honest about what you suck at; if you lack attention to detail or tend to "save" weak job candidates, pair up with a detail-oriented partner and empower them to hire slowly and fire fast.
  • Lead with kindness rather than intimidation: Eliminate yelling and fear from your management style, recognizing that treating employees well—and investing directly in their recovery and development—yields much higher performance and retention.
  • Audit self-insured healthcare costs: If you are a CEO among the 67% of employers who are self-insured (paying your employees' actual medical bills), examine your contracts with the three major healthcare conglomerates and look for transparent, cost-plus alternatives to lower expenses.