• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
SuccessElon Musk

VC billionaire Marc Andreessen on Tesla and SpaceX: They ‘probably would have gone under’ with anyone besides Elon Musk

Steve Mollman
By
Steve Mollman
Steve Mollman
Contributors Editor
Down Arrow Button Icon
Steve Mollman
By
Steve Mollman
Steve Mollman
Contributors Editor
Down Arrow Button Icon
October 13, 2023, 2:57 PM ET
Tesla and SpaceX CEO Elon Musk, left, and venture capitalist Marc Andreessen.
Tesla and SpaceX CEO Elon Musk, left, and venture capitalist Marc Andreessen.Musk: Chesnot/Getty Images; Andreessen: Steve Jennings—Getty Images

Elon Musk draws both ire and admiration, but few would accuse the world’s richest man of lacking perseverance. Leading Tesla and SpaceX from easy-to-dismiss startups to hard-to-ignore giants in the previously obscure fields of electric vehicles and commercial space flight, respectively, required a high degree of stubbornness.

Marc Andreessen, the billionaire cofounder of venture capital giant Andreessen Horowitz, believes Musk’s refusal to give up is what propelled the two companies to success. And in a time when many startup founders are taught to “fail fast” and move on, Andreessen thinks Musk serves as an instructive lesson on doing just the opposite. 

“He should have lost both Tesla and SpaceX,” Andreessen said in an interview posted by ElevenLabs this week. “They both should have gone under multiple times. Basically with any other founder, I think they both probably would have gone under.” 

SpaceX’s success was far from guaranteed. Andreessen described an “inspiring” compilation video of every SpaceX rocket that failed before the company’s first successful launch, saying, “It is rocket after rocket after rocket after rocket exploding.” 

He added, “Who wants to invest in a company when the rockets keep blowing up? There were points where they almost lost the company.”

In August 2008, Wired asked Musk how he maintained his optimism given all the rocket failures. He replied, “Optimism, pessimism, f**k that; we’re going to make it happen. As God is my bloody witness, I’m hell-bent on making it work.” 

A month later, SpaceX became the first privately owned company to send a liquid-fueled rocket into orbit. Musk later admitted that, with the company “running on fumes” financially, a “failure would have been absolutely game over.” Instead, three months later SpaceX won a NASA contract worth over $1 billion for servicing the International Space Station.

As for Tesla, even as late as 2019 “it looked quite uncertain it would exist in two years,” legendary investor Jeremy Grantham recently told The Compound & Friends podcast. “They had a cash crunch.” Grantham admitted to the mistake of not investing in the carmaker at the time, despite being impressed with a Tesla he’d purchased. Tesla’s market valuation proceeded to rise tenfold from then to now.

‘Fail fast’ versus ‘blind stubbornness’

Andreessen noted that many startup founders have adopted the “fail fast” mentality, which essentially says that if a business idea is not working after a certain point, it’s time to move on and try something else, rather than waste years of one’s life on it.

“There’s something to it,” he said of the philosophy. “How much of your life do you want to spend pounding away at something that isn’t going to work? A lot of companies pivot and modify their strategies along the way.”

But, he added, “I’ve seen greater success come from the opposite approach, which is basically like—almost but not quite—blind stubbornness.”

While Musk assembled “great teams” at both companies, Andreessen said, “part of it is he just would not quit. And then, by the way, not quitting is infectious. When you have a leader with that attitude at the head of the company, that’s a big deal.”

Of course, not every startup is based on a world-changing vision, and some business ideas will simply never pan out. Elad Gil, a Silicon Valley angel investor, recently warned against wasting years of one’s life in such cases.

“People end up spending years and years and years of life just grinding away on something that isn’t going to work, because maybe it will work if I do these three more tweaks, and maybe it will work this month if I keep going,” he said on the Logan Bartlett Show podcast. “For a very small number of cases that happens, but for the majority it works immediately, or near immediately.” 

Andreessen acknowledged the danger and suggested a point at which founders should consider whether to keep trying, saying “the basic framework I would use” is a startup having a five-year opportunity to prove it can succeed. He noted that there are exceptions, but “beyond year five, if there aren’t tangible signs of progress and success, you just have a very hard time holding the team…at some point people lose faith.”

That can result in key talent jumping ship for opportunities elsewhere.

On the flip side, he said, “there are founders who spend their lives doing the fail-fast strategy. The problem is it’s a risk minimization framework that has the effect of basically preventing success.”

Taken to its limit, he said, what it means is that “you never stick to any one thing long enough to make it work… There are people who do that. They might have had a chance of greatness and they just pulled the plug too quickly.”

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Author
Steve Mollman
By Steve MollmanContributors Editor
LinkedIn iconTwitter icon

Steve Mollman is a contributors editor at Fortune.

See full bioRight Arrow Button Icon

Latest in Success

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
Fortune Secondary Logo
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Success

Gamers celebrating
SuccessCareers
Meet the Gen Z college students who turned Excel into a competitive esport—they’re competing in spreadsheet challenges and it’s helping them land jobs
By Preston ForeFebruary 28, 2026
4 hours ago
Successphilanthropy
Dolly Parton’s philanthropy inspiration is her father who couldn’t read or write: ‘I saw how crippling that could be’
By Sydney LakeFebruary 27, 2026
20 hours ago
Personal Financewealth management
The Great Wealth Transfer is already happening as millennials hitting their ‘Peak 35’ are richer than ever
By Catherina GioinoFebruary 27, 2026
20 hours ago
Spencer Rascoff, chief executive officer of Match Group Inc
SuccessGen Z
CEO of the tech company behind Hinge and Tinder set up an employee hotline where staff can DM him anytime: ‘No hierarchy. No filters. Just real input.’
By Emma BurleighFebruary 27, 2026
23 hours ago
Man sitting at a desk managing multiple devices at one time
SuccessCareers
Workers are making over $1 million by secretly holding down multiple gigs—and they’re doing it all within the 40-hour workweek
By Preston ForeFebruary 27, 2026
23 hours ago
SuccessProductivity
Japanese companies are paying older workers to sit by a window and do nothing—while Western CEOs demand super-AI productivity just to keep your job
By Orianna Rosa RoyleFebruary 27, 2026
24 hours ago

Most Popular

placeholder alt text
Success
Japanese companies are paying older workers to sit by a window and do nothing—while Western CEOs demand super-AI productivity just to keep your job
By Orianna Rosa RoyleFebruary 27, 2026
24 hours ago
placeholder alt text
Success
Walmart exec says U.S. workforces needs to take inspiration from China where ‘5 year-olds are learning DeepSeek’
By Preston ForeFebruary 27, 2026
1 day ago
placeholder alt text
Commentary
'The Pitt': a masterclass display of DEI in action 
By Robert RabenFebruary 26, 2026
2 days ago
placeholder alt text
Innovation
An MIT roboticist who cofounded bankrupt robot vacuum maker iRobot says Elon Musk’s vision of humanoid robot assistants is ‘pure fantasy thinking’
By Marco Quiroz-GutierrezFebruary 25, 2026
3 days ago
placeholder alt text
Law
China's government intervenes to show Michigan scientists were carrying worms, not biological materials
By Ed White and The Associated PressFebruary 26, 2026
2 days ago
placeholder alt text
Success
Gen Z Olympic champion Eileen Gu says she rewires her brain daily to be more successful—and multimillionaire founder Arianna Huffington says it really does work
By Orianna Rosa RoyleFebruary 25, 2026
3 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.